InterFit Timer vs LightNeedle
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/
LightNeedle
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Take control of your GLP-1 routine with one clean, private tracker. Built for people using tirzepatide, semaglutide, orlistat, and similar weight-management plans, LightNeedle helps you stay consistent, reduce missed doses, and understand your progress over time. What you can do: - Log every injection in seconds - Track dose changes week by week - Set medication reminders that match your schedule - Record weight and body measurements - Track side effects, appetite, mood, and energy - View progress with simple trend charts - Export your history for clinician visits Designed for daily use: - Fast entry flow for shot, dose, and notes - Clean timeline and calendar views - Flexible reminder settings - Structured logs you can actually review later Why users choose LightNeedle: - Built for GLP-1 routines, not generic notes - Easy to keep streaks and stay accountable - Makes follow-ups with your care team easier Important: LightNeedle is for self-tracking and educational purposes only. It does not provide medical advice, diagnosis, or treatment. Always follow your clinician's guidance. Download now and build a routine you can stick with.
Screenshots
Verdict
The clearest difference is update cadence: LightNeedle at fortnightly against InterFit Timer's every 17 months. On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
InterFit Timer ships an update every 17 months, LightNeedle fortnightly. The most recent releases landed on September 19, 2026 and September 28, 2026 respectively.
| Parameter | InterFit Timer | LightNeedle |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 17 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 25 MB | 23 MB |
| Age rating | 17+ | 12+ |
| Developer | 爱华 刘 | 志超 杨 |
In-app purchases
InterFit Timer
No in-app purchases
LightNeedle
No in-app purchases









