Intermittent vs Interim
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Intermittent
Easily track your intermittent fasting with a visual timeline and preset or custom plans. Integrate with Apple Health for a holistic view of your wellness. Stay updated with widgets and Apple Watch support.
- Fasting timer
- Visual stage timeline
- Preset and custom plans
- Apple Health integration
- Apple Watch app
- Widgets and Live Activities
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100% FREE — NO SUBSCRIPTION, NO PAYWALL, NO IN-APP PURCHASES. BetterFasting is a simple, powerful intermittent fasting timer and tracker for your daily routine. Pick a plan, start your fast, and watch your progress build day after day. Every feature is unlocked from the very first tap. The app is supported by ads, so the tools stay open and free for everyone. POPULAR FASTING PLANS, OR YOUR OWN Fast with 16:8, 18:6, 20:4, OMAD, 5:2, or build a custom fasting window that fits your life. Start, stop, and edit fasts whenever you need to, so the timer always matches your real day. KNOW EXACTLY WHERE YOU ARE Follow live fasting stages as your body moves through your fast, with a clear timer ring and progress at a glance. Set smart reminders so you never miss the start or end of a window. TRACK WHAT MATTERS Log water and mood through the day, record your weight over time, and build streaks and badges that keep you motivated. Review your full fasting history with simple charts that show your trends week over week. ALWAYS WITHIN REACH Add home screen and lock screen widgets, keep your timer front and center with Live Activities and the Dynamic Island, and check your fast right from your wrist with the Apple Watch app. Apple Health sync keeps your data connected, and iCloud sync keeps everything safe across your devices. FAST TOGETHER Add friends, join groups, take on challenges, and cheer each other on in the activity feed. Staying accountable is easier when you are not doing it alone. SPEAKS YOUR LANGUAGE Available in 45 languages, including full right-to-left support. WHY BETTERFASTING? - 100% free: no subscription, no paywall, no in-app purchases. - Every plan and tool unlocked from day one. - Clean, fast, and easy to use every single day. - Ad-supported so the core experience stays open to all. Many fasting apps hide basic tools behind a subscription. BetterFasting is different. Start free, track your routine, stay accountable with friends, and keep the habit going. Fasting is a personal wellness routine, not medical advice. If you have a medical condition, are pregnant, or are unsure whether fasting is right for you, talk to a qualified health professional before you begin. Download BetterFasting and start your first fast today.
Interim
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Interim shows your whole day as one band: hatched while you fast, filled once your eating window opens, with a red line marking now. One glance is enough — no arithmetic in your head. Eat in the window. Rest after. WHAT INTERIM DOES • A timer for the fast you are in, with the start and end of your window • Six protocols: 16:8, 18:6, 20:4, OMAD (23:1), 5:2, or a window of your own • A streak freeze for the days life gets in the way: your streak holds, without the day counting as a fasting day • History by week and month, with averages, longest fast and success rate • Streaks and marks that carry you along without nagging • Home Screen and Lock Screen widgets, plus a Live Activity in the Dynamic Island • Reminders when your window opens and when it is time to fast again • Add or correct entries — including yesterday's fast you forgot to log • Apple Health if you want it: Interim reads your weight and shows it next to your fasting times • Nine accent colours from brick to graphite: the band, badges, widgets and Live Activity take them on; the app icon only if you want it to • Light and dark, English and German — you switch the language inside the app WHAT INTERIM DOES NOT DO No account. No sign-up, no email, no password. No ads. Anywhere, ever. No subscription. Every feature is open, permanently. No calories. Interim counts hours, not calories — and does not judge you. No data for us. There is no server. Everything stays on your device. FOR BEGINNERS AND THE PRACTISED Starting out, take 16:8 — most of it is sleep. The explainer inside the app shows what happens in which hour and names the three rules that are enough. Already practised? Set your own window and track without the app talking back. If Interim helps you, you can buy me a coffee. One-off, voluntary, and it unlocks nothing — there is nothing to unlock. NOTE Interim is not a medical device and does not replace medical advice. During pregnancy, with eating disorders or diabetes medication, speak to a doctor first.
Screenshots
Verdict
The clearest difference is in-app purchases: Interim at none against Intermittent's 4. Intermittent's advantage is update cadence (every 4 days vs every 2 weeks) and device support (3 vs 1). 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. Intermittent sells 4 in-app purchases, starting at $4.99 per month. Interim asks for nothing beyond the download.
Intermittent ships an update every 4 days, Interim every 2 weeks. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.
| Parameter | Intermittent | Interim |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (9 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 4 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 33 MB | 2 MB |
| Age rating | 12+ | 4+ |
| Developer | BARBAROS SELIM BUYUKELCI | Shiwani Goswami |
In-app purchases
Intermittent
- Monthly Premium3 Days trial$4.991 Month
- 3 Months Premium3 Days trial$9.993 Months
- 6 Months Premium3 Days trial$24.996 Months
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- Yearly Premium3 Days trial$34.991 Year
Interim
No in-app purchases
Questions
Is Intermittent free?
Is Interim free?
Do Intermittent or Interim have ads?
Which is updated more often, Intermittent or Interim?
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