# Leastimator vs TFAuth

The clearest difference is ads: TFAuth at none against Leastimator's shown. TFAuth also leads on device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Leastimator sells 2 in-app purchases, starting at $2.99 per month and TFAuth sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Leastimator ships an update every 3 days, TFAuth every 5 days. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Leastimator | TFAuth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (50 ratings)](https://appshunter.io/ios/app/leastimator/id1228501014/reviews)** | — |
| Number of ratings | **50** | — |
| Positive reviews | 45.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 5 days |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 16 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Hao Liu](https://appshunter.io/developer/938833744) | [Alex Khalkho](https://appshunter.io/developer/1884305629) |

## What reviewers say

### Leastimator

[App page](https://appshunter.io/ios/app/leastimator/id1228501014)

Easily track your leased car's mileage with this intuitive app. Visualize your progress with a line chart and get predictions to avoid exceeding your mileage limit. Set up vehicle profiles with lease details and monitor your driving habits.

**Highlights:** Mileage tracking for leased vehicles, Elegant line chart visualization, Predicted mileage calculation, Vehicle profile creation, Adjust driving based on limits

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Yearly | $29.99 | per year |


### TFAuth

[App page](https://appshunter.io/ios/app/tfauth/id6760404590)

**Features:** macOS Compatibility, Safari Extension, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $6.99 | one-time |
| Pro+ | $9.99 | one-time |


## Frequently asked questions

### Is Leastimator free?

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

### Is TFAuth free?

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

### Do Leastimator or TFAuth have ads?

Leastimator shows ads; TFAuth does not.

### Which is updated more often, Leastimator or TFAuth?

Leastimator ships an update every 3 days, and TFAuth every 5 days. Most recently, Leastimator was updated on October 5, 2026 and TFAuth on October 1, 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.*