InterFit Timer vs Rytek
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
InterFit Timer
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InterFit Timer is a plan-driven interval training manager built for athletes who need more than a basic countdown. Unlike generic timers that only switch between exercise and rest, InterFit lets you design full workout sequences with named stages—warm-up, work intervals, active recovery, and cooldown—and run them with precise pacing, audio cues, and progress tracking. WHAT MAKES INTERFIT DIFFERENT • Multi-Stage Workout Builder — Design named stage sequences (prepare, exercise, rest, cooldown), not just a single exercise/rest loop. Free users can build up to 3 stages; Pro unlocks up to 30 stages for HIIT circuits, strength supersets, boxing rounds, and yoga flows. • Training Plan System — Save, favorite, duplicate, and reuse structured plans. Browse presets by category (HIIT, Strength, Cardio, Yoga), search your library, and start from the Today tab in one tap. • Stage Timeline Interface — Follow every stage on a clear timeline before and during your workout. The training screen highlights your current stage and auto-scrolls as you progress—no generic single-ring countdown as the core experience. • Live Activities — See your current stage, countdown, and workout progress on the Lock Screen and Dynamic Island. • Apple Health Sync — Optionally save completed interval workouts to the Health app (enable in Settings). Write-only; we do not read your Health data. • Workout History & Streaks — Review weekly volume, streak days, your most-used plan, and filter sessions by day. • Apple Watch Companion — Start recent or favorite plans from your wrist; completed sessions sync back to iPhone. • Focused Training Mode — Full-screen workout UI with pause, skip, and end controls. Voice cues, countdown sounds, and haptics are configurable in Settings. IDEAL FOR • HIIT and Tabata with custom stage design • Strength training rest management • Cardio interval ladders • Yoga and mobility timing • Home and gym sessions where structure matters FREE VS PRO • Free: up to 3 stages per plan, up to 5 custom plans, all core training features • Pro: up to 30 stages, unlimited custom plans, Pro template library, and advanced training insights InterFit Timer helps you train with intention—not just count seconds. InterFit Pro is an auto-renewing yearly subscription ($19.99/year). Payment is charged to your Apple ID account upon confirmation. Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. Manage or cancel your subscription in your Apple ID Account Settings at any time. Terms of Use (EULA): https://asynch1889.github.io/timerapp-privacy/terms-of-service.html Privacy Policy: https://asynch1889.github.io/timerapp-privacy/
Rytek
This app helps lifters track their strength training progress offline. Log sets, create custom plans, and monitor key metrics like volume and PRs without distractions. Review detailed stats and export your data.
- Log weight, reps, and RPE
- Create and run training plans
- Track PRs and volume
- Monitor Training Readiness
- Review workout statistics
- Export training data
- Offline functionality
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Rytek is a local-first strength training log for recording workouts, following a plan, and reviewing progress over time. What you can do: • Log weight, reps, RPE, warm-up sets, and completion • Create and run 5x5, PPL, upper/lower, full-body, or custom plans • Start planned workout days from Today and track exercise progress • Review PRs, estimated 1RM, volume, consistency, and Training Readiness • See plan completions, skipped exercises, and extra work • Create workout recap cards to save or share • Export training data and use local backup and sync tools Core workout logging works offline, without a social feed or leaderboard. Pro is a one-time purchase, not a subscription. It unlocks multiple plans, plan copying, detailed plan stats, data export, local backups, and sync. Privacy Policy: https://rytek.naxs.top/privacy-policy Terms of Use: https://rytek.naxs.top/terms-of-use
Screenshots
Verdict
The clearest difference is in-app purchases: InterFit Timer at none against Rytek's 1. InterFit Timer also leads on device support (3 vs 1). Rytek's advantage is update cadence (every 4 days vs every 17 months). On price, ads and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Rytek sells 1 one-off in-app purchase. InterFit Timer asks for nothing beyond the download.
InterFit Timer ships an update every 17 months, Rytek every 4 days. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.
| Parameter | InterFit Timer | Rytek |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 17 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 25 MB | 73 MB |
| Age rating | 17+ | 4+ |
| Developer | 爱华 刘 | 文超 李 |
In-app purchases
InterFit Timer
No in-app purchases
Rytek
- Pro (Lifetime)$8.99









