Fastily vs Intervo
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Fastily
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* Track your intermittent fasting with ease. Start and stop your fasts in just one tap and log your current fasting state anytime. * View your complete fasting history and manually add fasts whenever needed. * Understand your fasting habits with detailed statistics, including your current and longest streaks, average and longest fast duration, total fasts, total fasting duration, number of successful fasts, fasting success rate, and median start and end times โ all visualized through charts for weekly, monthly, and yearly views. * Customize the app to fit your preferences, with options for colors, light/dark/automatic appearance, time and date formats, notifications, haptics, and more. Clean, customizable, and focused on what matters: helping you stay consistent and reach your health goals. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Intervo
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Generate an ascending, descending or pyramid interval workout with optional rest, preparation and cooldown, then save the full timeline as an editable workout. HOW IT WORKS 1. Open Session Ladder from Home. Choose a shape, number of levels, first work interval and per-level increment. 2. Add optional rest and bookends. Review the complete timeline and total duration before saving. 3. Save as an editable workout, review the plan and use the existing workout runner when ready. Existing workout editing, interval running, history and settings remain available. Generated intervals are stored together in a single transaction, preserving their order and exact durations. WHAT TO KNOW Up to 12 levels and two hours total. A pyramid includes its peak once. Zero-length optional stages are omitted. Rest after the final work stage is optional. The generated workout is a timer plan, not a prescribed exercise program. iPhone and iPad.
Screenshots
Verdict
The clearest difference is price: Fastily at Free against Intervo's $0.99. On update cadence, ads, in-app purchases and device support 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
Fastily is free to download; Intervo costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Fastily ships an update every 4 days, Intervo weekly. Both last shipped on September 15, 2026.
| Parameter | Fastily | Intervo |
|---|---|---|
| Price | Free โ better | $0.99 |
| Update frequency | Every 4 days โ better | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 โ better |
| Further details โ not scored | ||
| Size | 25 MB | 5 MB |
| Age rating | 12+ | 4+ |
| Developer | Filippa Steiner | Robert Corbin |
In-app purchases
Fastily
No in-app purchases
Intervo
No in-app purchases









