Vory One Timer vs Kaizer for Coaches
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Vory One Timer
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A simple, premium-feeling sports timer for athletes who time their work. Vory One Timer gives you the timer modes you actually use during training, on a clean dark display with seven-segment LED digits visible from across the gym. No accounts. No subscriptions. No ads. No tracking. FREE MODES โข Clock โ current time of day โข Chronometer โ start, stop, summary โข Count Up โ open-ended timing to a cap โข Count Down โ set a target and watch it tick to zero โข Interval โ work / rest, up to 4 rounds โข EMOM โ every minute on the minute, up to 20 rounds โข Tabata โ 20s work / 10s rest ร 8 PREMIUM (one-time โฌ2.99 unlock, no subscription) โข EMOM Pro โ any interval, any rounds, with saved presets โข My Presets โ save and recall your favorite setups โข Custom โ chain any sequence of work and rest blocks AUDIO CUES THAT KEEP WORKING Three short beeps in the last 3 seconds of every interval, followed by a long beep at every milestone. Cues keep playing when your phone is locked, when you switch apps, even when a call comes in โ the timer doesn't stop because you stopped looking at it. DESIGNED FOR THE GYM โข Big LED-style digits, readable across the box โข Landscape-only, dark theme, no glare โข Screen stays awake during a workout โข Local notification if you background the app while a timer is still running โข Mute toggle for shared spaces OPTIONAL SIGN IN Sign in with Apple is optional โ used only to display your name on the Profile screen. Everything you do in the app stays on your device. NO TRACKING. NO SERVERS. We don't collect a single byte. No analytics, no ads, no third-party SDKs. Read our Privacy Policy at voryone.io/timer/privacy.
Kaizer for Coaches
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Kaizer is the app for trainers you want within reach. Manage every client, build professional training plans and keep the conversation in one place, from your phone. YOUR CLIENTS, ORGANISED Your whole roster in one place. Find any client in seconds, open their profile and follow their progress: adherence, completed sessions, streak, weight, goals and weak points. Add private notes so nothing slips. PLANS THAT ADAPT Build reusable programs and assign them to a client in one tap. Organise by weeks and sessions, and write routines with everything you need: sets, reps, load, rest, supersets, circuits and dropsets. Every exercise ships with an illustration of the muscle it works. SESSIONS IN DETAIL Define each movement precisely and leave notes on the whiteboard (warm-up, cues, cool-down) so your client knows exactly what to do. DIRECT CHAT WITH YOUR CLIENTS Talk to each one inside the app: messages, photos, files and voice notes. Keep the follow-up close without leaning on other apps. AI ASSISTANT Your coaching copilot. Ask it to draft routines, follow up on clients, look up exercises and explain how your business is doing. Ask it anything, whenever. LET THEM FIND YOU Publish your profile on the Kaizer marketplace: clients who do not have a trainer yet see how you work, your specialties and whether you coach online, in person or both. You can also share your personal link to bring clients in from outside. GROW YOUR BUSINESS Invite people to your list and measure what matters: adherence and retention. EVERYTHING IN ONE PLACE - Home dashboard with your day at a glance - Alerts for clients with no routine assigned - Exercise library with illustrations - Sign in with Apple and Google - Notifications when your clients train or message you Kaizer is built for personal trainers, coaches and fitness professionals who want to spend less time on admin and more time coaching. Please note: the app interface is currently in Spanish. English and Portuguese versions are in the works. Terms of Service: https://kaizer.app/en/terms-and-conditions Privacy Policy: https://kaizer.app/en/privacy-policy
Screenshots
Verdict
The clearest difference is in-app purchases: Kaizer for Coaches at none against Vory One Timer's 1. Vory One Timer's advantage is update cadence (every 4 days vs every 8 days). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Vory One Timer sells 1 one-off in-app purchase. Kaizer for Coaches asks for nothing beyond the download.
Vory One Timer ships an update every 4 days, Kaizer for Coaches every 8 days. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.
| Parameter | Vory One Timer | Kaizer for Coaches |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days โ better | Every 8 days |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.4 โ better |
| Further details โ not scored | ||
| Size | 2 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | Vory One LLC | KAIZER |
In-app purchases
Vory One Timer
- Premium$2.99
Kaizer for Coaches
No in-app purchases
Questions
Is Vory One Timer free?
Is Kaizer for Coaches free?
Do Vory One Timer or Kaizer for Coaches have ads?
Which is updated more often, Vory One Timer or Kaizer for Coaches?
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