# Fasting Tracker App by Numify vs FastSloth

The clearest difference is ratings volume: Fasting Tracker App by Numify at 5.9K against FastSloth's 5. Fasting Tracker App by Numify also leads on iOS requirement (17.5 vs 26.0). FastSloth's advantage is update cadence (every 6 days vs monthly) and rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Fasting Tracker App by Numify sells 19 in-app purchases, starting at $3.99 per 7 days and FastSloth sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

FastSloth holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Fasting Tracker App by Numify has 5.9K ratings behind it against 5, so its average is the more settled of the two.

Fasting Tracker App by Numify ships an update monthly, FastSloth every 6 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Fasting Tracker App by Numify | FastSloth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (5.9K ratings)](https://appshunter.io/ios/app/fasting-tracker-app-by-numify/id6470460463/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/fastsloth-fasting-tracker/id6759827972/reviews)** |
| Number of ratings | **5.9K** | 5 |
| Positive reviews | 60.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 158 MB | 9 MB |
| Requires iOS | **17.5** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Municorn Limited](https://appshunter.io/developer/380984285) | [Darren Paul](https://appshunter.io/developer/1874841503) |

## What reviewers say

### Fasting Tracker App by Numify

[App page](https://appshunter.io/ios/app/fasting-tracker-app-by-numify/id6470460463)

This app guides users through intermittent fasting for weight loss and improved health. It offers simple tracking, personalized plans, and smart notifications to help establish healthy habits without restrictive diets.

**Highlights:** Intermittent fasting guidance, Weight loss without restrictive diets, OMAD and 16/8 timer options, Effortless tracking, Smart notifications, Personalized fasting plans

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fasting Plus | $3.99 | per 7 days |
| Fasting Plus | $3.99 | per 7 days |
| Fasting Plus | $4.99 | per 7 days |
| Premium features | $5.99 | per 7 days |
| Fasting Plus | $5.99 | per 7 days |
| Fasting Plus | $5.99 | per 7 days |
| Lose Weight with a Fasting App | $5.99 | per 7 days |
| Plus | $9.99 | per 7 days |
| Premium features | $14.99 | per month |
| Fasting Plus | $19.99 | per 3 months |
| Plus | $29.99 | per 3 months |
| Fast Tracker for Fasting Clock | $29.99 | per 3 months |
| Fasting Special Offer | $39.99 | per year |
| Fasting Plus | $49.99 | per year |
| Fasting Plus | $49.99 | per year |
| Premium features | $59.99 | per year |
| Premium features | $59.99 | per year |
| Fasting Tracker & Fast Timer | $69.99 | per year |
| Fasting Tracker & Fast Timer | $69.99 | per year |

**What reviewers like**

- 🚀 Easy to use
- 👍 Helpful for beginners
- 💡 Customizable fasting schedules
- 🚀 Convenient and portable
- 👍 Effective for weight loss and health

**What reviewers complain about**

- 🔒 Paywall for basic features
- 🐛 Bugs and glitches
- 🔒 Deceptive free trial
- 🐛 Unreliable data tracking
- 🔒 Expensive subscription

**Reported bugs**

- Incorrect date and time display
- Inability to edit personal information
- Inconsistent data saving and syncing
- Frequent crashes and app not opening

**Requested features**

- Add 18:6 fasting option
- Include meal logging and nutrition tracking
- Provide more fasting protocols and customization
- Improve notifications and reminders


### FastSloth

[App page](https://appshunter.io/ios/app/fastsloth-fasting-tracker/id6759827972)

This app helps you track intermittent fasting with customizable schedules and real-time indicators of your body's stages. It also includes hydration logging, weight tracking with visual progress charts, and smart notifications to keep you on track. All your data stays private on your device.

**Highlights:** Customizable fasting schedules, Real-time ketosis and autophagy indicators, Hydration logging and reminders, Weight tracking with progress charts, Streak tracking and milestone badges, Home screen widgets, Private, no account required

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Lifetime | $1.99 | one-time |


## Frequently asked questions

### Is Fasting Tracker App by Numify free?

Fasting Tracker App by Numify is free to download, with in-app purchases available.

### Is FastSloth free?

FastSloth is free to download, with in-app purchases available.

### Which has better reviews, Fasting Tracker App by Numify or FastSloth?

FastSloth is rated higher. Fasting Tracker App by Numify averages 4.7 out of 5 from 5.9K ratings, while FastSloth averages 5.0 from 5 ratings.

### Do Fasting Tracker App by Numify or FastSloth have ads?

Neither Fasting Tracker App by Numify nor FastSloth shows ads.

### Which is updated more often, Fasting Tracker App by Numify or FastSloth?

Fasting Tracker App by Numify ships an update monthly, and FastSloth every 6 days. Most recently, Fasting Tracker App by Numify was updated on October 28, 2026 and FastSloth on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*