# Quitzilla vs Thinline

The clearest difference is update cadence: Thinline at every 2 days against Quitzilla's every 10 months. Thinline also leads on iOS requirement (16.4 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Quitzilla sells 7 in-app purchases, starting at $5.99 per 7 days and Thinline sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Quitzilla ships an update every 10 months, Thinline every 2 days. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Quitzilla | Thinline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.5K ratings)](https://appshunter.io/ios/app/quitzilla-quit-tracker/id1533076568/reviews)** | — |
| Number of ratings | **1.5K** | — |
| Positive reviews | 73.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 82 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Andrii Hula](https://appshunter.io/developer/1533076570) | [Josip Miljak](https://appshunter.io/developer/6805523661) |

## What reviewers say

### Quitzilla

[App page](https://appshunter.io/ios/app/quitzilla-quit-tracker/id1533076568)

This app helps you overcome addictions and bad habits by tracking your progress, calculating money saved, and providing motivational content. Analyze your habits, set goals, and stay motivated with daily quotes and personalized reasons to quit.

**Highlights:** Track multiple habits, Calculate money saved, Personalized motivation, Detailed statistics, Customizable habits, Quote of the day

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week | $5.99 | per 7 days |
| 1 Month | $5.99 | per month |
| 6 Months | $24.99 | per 6 months |
| 1 Year | $29.99 | per year |
| 1 Year | $29.99 | per year |
| 1 Year | $29.99 | per year |
| Lifetime | $89.99 | one-time |

**What reviewers like**

- 👍 Clean interface and simplicity
- 🚀 Tracks progress down to seconds
- 💪 Helps with quitting addictions
- 🎉 Motivating and encouraging

**What reviewers complain about**

- 💰 Premium subscription is expensive
- 🔒 Premium required for more features
- 🤔 Confusing for some preset habits
- 🐛 Counters not updating properly

**Reported bugs**

- Inability to set language to Chinese
- Premium not working after device change

**Requested features**

- Add widget option
- Allow more than 2 habits in free version
- Offer one-time purchase option for premium
- Add ability to remove motivational messages
- Improve sync and time tracking accuracy


### Thinline

[App page](https://appshunter.io/ios/app/thinline-private-sin-tracker/id6805523659)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thinline Monthly | $6.99 | per month |
| Thinline Annual | $29.99 | per year |
| Thinline Founders Offer | $39.99 | one-time |


## Frequently asked questions

### Is Quitzilla free?

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

### Is Thinline free?

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

### Do Quitzilla or Thinline have ads?

Neither Quitzilla nor Thinline shows ads.

### Which is updated more often, Quitzilla or Thinline?

Quitzilla ships an update every 10 months, and Thinline every 2 days. Most recently, Quitzilla was updated on October 15, 2026 and Thinline on October 9, 2026.

---

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