# FERVOR vs ABC Behavior Tracker

The clearest difference is in-app purchases: FERVOR at none against ABC Behavior Tracker's 2. ABC Behavior Tracker's advantage is update cadence (every 2 days vs every 9 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ABC Behavior Tracker sells 2 in-app purchases, starting at $4.99 per month. FERVOR asks for nothing beyond the download.

FERVOR ships an update every 9 months, ABC Behavior Tracker every 2 days. The most recent releases landed on November 8, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | FERVOR | ABC Behavior Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 days** |
| Size | 15 MB | 68 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Trainin](https://appshunter.io/developer/1732652497) | [Wouter ter Mors](https://appshunter.io/developer/6813427230) |

## What reviewers say

### FERVOR

[App page](https://appshunter.io/ios/app/fervor/id6502752619)

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

**In-app purchases:** none


### ABC Behavior Tracker

[App page](https://appshunter.io/ios/app/abc-behavior-tracker-vindra/id6814843681)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Maandelijks | $4.99 | per month |
| Jaarlijks | $44.99 | per year |


## Frequently asked questions

### Is FERVOR free?

FERVOR is free to download, with no in-app purchases.

### Is ABC Behavior Tracker free?

ABC Behavior Tracker is free to download, with in-app purchases available.

### Do FERVOR or ABC Behavior Tracker have ads?

Neither FERVOR nor ABC Behavior Tracker shows ads.

### Which is updated more often, FERVOR or ABC Behavior Tracker?

FERVOR ships an update every 9 months, and ABC Behavior Tracker every 2 days. Most recently, FERVOR was updated on November 8, 2026 and ABC Behavior Tracker on November 13, 2026.

---

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