# estimateX vs BlitzGTD

The clearest difference is update cadence: BlitzGTD at every 4 days against estimateX's every 3 weeks. estimateX's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. estimateX sells 2 in-app purchases, starting at $17.99 per month and BlitzGTD sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

estimateX ships an update every 3 weeks, BlitzGTD every 4 days. The most recent releases landed on September 19, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | estimateX | BlitzGTD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 116 MB | 22 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [TAKOMAT GmbH](https://appshunter.io/developer/331299574) | [Sascha Krug](https://appshunter.io/developer/1698716188) |

## What reviewers say

### estimateX

[App page](https://appshunter.io/ios/app/estimatex/id1479690183)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| estimateX (1-Month) | $17.99 | per month |
| estimateX (1-Year) | $204.99 | per year |


### BlitzGTD

[App page](https://appshunter.io/ios/app/blitzgtd/id6463464743)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BlitzGTD Pro | $5.99 | one-time |


## Frequently asked questions

### Is estimateX free?

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

### Is BlitzGTD free?

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

### Do estimateX or BlitzGTD have ads?

Neither estimateX nor BlitzGTD shows ads.

### Which is updated more often, estimateX or BlitzGTD?

estimateX ships an update every 3 weeks, and BlitzGTD every 4 days. Most recently, estimateX was updated on September 19, 2026 and BlitzGTD on September 15, 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.*