Prepare, interpret, reflect, and recover — private by design.
SignPrep is the only companion app with a true interpreter swap timer and a personal video sign glossary — plus a complete preparation workspace, CPD tracking, and reflection. Built to run on your device, so the people you interpret for stay private to you.
One app, not five
Most interpreters stitch together a handful of generic tools to get through the day. SignPrep replaces that stack with one app built around how interpreting actually works.
The usual stack
SignPrep
Prep, swap timing, glossary, CPD, and reflection — in one app, built around your data staying on your device.
Free. No account. No SignPrep-operated data servers.
A day, prepared
Open the assignment to check the location, generate a privacy-preserving AI Briefing with Apple Intelligence, then tap Prepare for this Assignment — one workspace for your checklist, research, key terms, notes, and resources. One tap opens directions.
Live Session appears once the assignment is within an hour of starting. Start Swap Timer, and set the phone down in Ambient Mode — the countdown stays readable across the room and pulses when it is time to swap.
Capture a DC-S reflection while it is fresh, then log your CPD hours in a tap. SignPrep tracks your renewal pace and reminds you before the deadline.
Your glossary grows, your reflection streak holds, and a monthly narrative surfaces patterns across mood, demands, and assignments — all kept to yourself.
Free. Private. Professional. On iPhone, iPad, and Apple Watch — no account, no sign-up, and no SignPrep-operated data servers.
Why SignPrep
SignPrep is built around how interpreting actually works — by a practising interpreter, not a software company. There is no account to create, no subscription, no ads, and no SignPrep-operated data backend. You own everything, and it works the moment you open it. Built in Singapore, and built for sign language interpreters everywhere.
By a practising interpreter, not a software company.
Before, during & after every assignment
Built as the all-in-one interpreter app, SignPrep gives sign language interpreters the tools to prepare for every assignment, reflect on their practice, and take care of their well-being — end to end. See the full list of features for sign language interpreters.
Assignments
Import from your work calendars with smart filtering, or add your own jobs with a Calendar-style editor — both are first-class routes in. Assignment Detail keeps the location, AI Briefing, notes, and the Prepare for this Assignment row together, and Live Session appears when the assignment is within an hour of starting or ongoing.
AI Preparation
Walk in already oriented to the topic. Tap Prepare for this Assignment to open one workspace that brings your checklist, topic research, reviewed web searches, key terms, notes, and resources together — plus Add More Context for AI, where you choose what Apple Intelligence may use. If your work calendar already contains useful details, SignPrep can optionally bring those Calendar Notes into Preparation too. Apple Foundation Models may process an AI request on your device or, for more advanced processing, through Private Cloud Compute. SignPrep cannot remotely access your AI requests or results.
AI suggestions are a starting point for your own prep, not a verified glossary. They can be incomplete or wrong, so always do your own preparation and confirm terminology against sources you trust.
AI suggestions may be generated on your device or through Apple’s Private Cloud Compute and may be incomplete or inaccurate. Always do your own preparation.
Swap Timer & Swap Clock First of its kind
Never lose track of whose turn it is. Swap Timer cycles through Running, Swap Soon, and Swap Now with haptic cues, while Swap Clock follows the real clock when a fixed interval doesn't fit. Both support A/B interpreter roles and an Ambient Mode you can set down and read at a glance during live sessions.
And more
A personal video sign glossary — a first for interpreters. Build a searchable video library of your signs — record clips, tag by domain and sign language, review in slow motion, share as visual cards, or export your collection. AI suggests related words you may not have thought to record. See the glossary.
Reflect with the Demand-Control Schema. Structured prompts walk you through environmental, interpersonal, paralinguistic, and intrapersonal demands, an interactive quiz sharpens your eye for categories, and you can flag entries for mentor discussion. See reflections.
Log Continuing Professional Development (counted as CEUs in the US) by activity type, with country-specific defaults for RID, NRCPD, and NAATI. Set your target and renewal period; SignPrep tracks your pace and alerts you within 30 days of renewal. Export as PDF or CSV.
Log mood daily and visualise trends. Track fatigue and cognitive load with colour-coded check-ins, follow guided breathing and interpreter-specific stretches, with AI suggestions drawn from your reflection history.
View assignments and the swap timer on your wrist, with four complication families and Smart Stack cards that surface what's next. Start or control the timer from either device — they stay in sync.
Home and Lock Screen widgets show greetings, upcoming assignments, CPD progress, and countdown gauges. One-tap New Sign, Reflect, and Log CPD shortcuts, plus Control Centre controls.
Ask "What's my next assignment?", "What's my day like?", or "What's my swap timer status?". Start, pause, and stop the timer by voice. Log CPD, add a sign, or capture a reflection hands-free.
An interactive Code of Professional Conduct with seven tenets and real-world examples, customisable role cards for hearing clients, and region-specific links to your national association and Deaf community organisations.
Stay ahead without thinking about it. Get a pre-assignment reminder before you leave, a reflection nudge after the job ends, and CPD renewal alerts as your deadline approaches — each one deep-links straight to the right screen, and every type has its own toggle.
New in v1.5.2
Version 1.5.2 introduces a unified Preparation workspace, optional Calendar Notes context, AI Briefings for assignments, contextual Live Session access, refreshed onboarding, and major reliability improvements.
Open an assignment's Preparation workspace to organise a checklist, research the topic, review web searches, collect key terms, add notes and resources, and give Apple Intelligence the context you choose. Completed assignments keep it all as read-only history.
Generate a focused preparation Briefing directly from Assignment Detail. Review it alongside the location and assignment information, then open Preparation for deeper checklist, research, terminology, and context work.
If a work-calendar event contains useful assignment details, SignPrep can optionally bring those notes into Preparation. You decide whether Calendar Notes may be included in Apple Intelligence context for each assignment — off by default, separate from your own notes, and never shown in widgets, notifications, Live Activities, Apple Watch, Spotlight, Siri, exports, logs, or analytics.
Privacy Preview explains how your current choices affect notifications, Live Activities, Apple Intelligence input, reflection exports, and Spotlight & Siri. Optional App Lock, title controls, protected app-switcher presentation, backup choices, and a local Security Activity Log provide additional layers of control.
Live Session appears when an assignment is starting within the next hour or is ongoing, keeping the detail view focused until live timing tools are useful — then Ongoing Assignment, Swap Timer, and Ambient Mode are a tap away.
Refreshed onboarding lets you choose calendar import or manual assignments, configure relevant permissions when they are needed, and explore a guided demo of preparation, Live Session, Ambient Mode, and reflection — using fictional content that never touches your data.
For interpreters, confidentiality is the first tenet of the Code of Professional Conduct — not a setting. Your SignPrep data is stored on your device. Apple Intelligence may process selected AI requests locally or use Private Cloud Compute for more advanced work. Apple states that no one else can access your data, not even Apple; SignPrep operates no AI servers and cannot remotely access your requests or results. With Privacy Preview, you can see how your choices affect notifications, Live Activities, AI input, reflection exports, and Spotlight & Siri. No account, and no PHI required.
VoiceOver works on every screen, widget, Live Activity, and Watch complication, with Dynamic Type, high-contrast colours, and haptic feedback throughout. Spotlight indexes your glossary and assignments on your device — and you can turn it off in Settings. Read the full privacy commitment.
Free on iPhone, iPad, and Apple Watch. No account, no sign-up, and no SignPrep-operated data servers.
Your SignPrep data is stored on your device. AI preparation uses Apple Foundation Models and may run locally or, for more advanced processing, through Private Cloud Compute. Apple states that no one else can access your data, not even Apple. SignPrep operates no AI servers and cannot remotely access your AI requests or results. Privacy Preview in Settings shows how your current choices affect notifications, Live Activities, AI input, reflection exports, and Spotlight & Siri, and an optional App Lock adds a separate PIN with Face ID or Touch ID where supported. See the HIPAA question below for US interpreters.
SignPrep uses Apple’s general-purpose Foundation Models through Apple Intelligence. Processing may happen on your device or, for more advanced requests, through Private Cloud Compute. These models are good at organising and summarising the information you provide, but they are not medical, legal, or specialist knowledge bases and can be incomplete or wrong. Treat Briefings, suggested topics, and terms as prompts for your own preparation, always verify them against trusted sources and your own glossary, and never rely on them as a final reference.
SignPrep is a personal preparation tool for interpreters. It is not a covered entity or a business associate, and it does not require any protected health information (PHI) to do its job. AI preparation uses Apple Foundation Models and may run on your device or through Private Cloud Compute; SignPrep operates no AI servers and cannot remotely access those requests or results. We recommend keeping patient or client details out of your calendars and out of the app; SignPrep works from the job type, not patient data. Note that consumer Apple or Google calendars are not HIPAA-compliant unless they are part of a specially configured healthcare workplace account. This is general information, not legal advice.
SignPrep is compatible with all iPhone models running iOS 26 or later, iPad models running iPadOS 26 or later, and Apple Watch models running watchOS 26 or later. For a full list of supported devices, please visit Apple's support pages for iPhone, iPad, and Apple Watch.
SignPrep works for interpreters of any sign language. You can tag each sign by domain and language.
Yes. CPD (Continuing Professional Development, counted as CEUs in the US) has country-specific defaults for RID, NRCPD, and NAATI, with target and renewal tracking. You can also turn CPD off if it isn't part of your practice.
Yes. Reflections and CPD logs export as PDF or CSV with date-range filtering.
Always improving
This update makes preparing for assignments clearer, faster, and more reliable.
This update also includes performance improvements and bug fixes across assignments, preparation, notifications, Live Activities, Apple Watch, and data migration.
A new focus on privacy and security.
See all release notes on the What’s new page, or the full version history on the App Store.
Thank you to every sign language interpreter who uses SignPrep — your work inspires this app, and your practice shapes it. SignPrep gets better because of the interpreters who share what they need. If you have feedback, a feature idea, or something that would make your assignments easier, I'd genuinely love to hear it — I read every message.
And if SignPrep has changed how you prep, swap, or reflect, I'd love to hear your story — with your permission, it may help other interpreters discover the app.
Or email [email protected]