# Thinventory Maintenance vs Field Ascend Engineers

The clearest difference is update cadence: Field Ascend Engineers at every 2 days against Thinventory Maintenance's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Thinventory Maintenance ships an update every 3 months, Field Ascend Engineers every 2 days. The most recent releases landed on October 26, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Thinventory Maintenance | Field Ascend Engineers |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Size | 51 MB | 85 MB |
| Requires iOS | **14.2** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thinventory Holdings Limited](https://appshunter.io/developer/1093787184) | [Field Ascend Ltd](https://appshunter.io/developer/6806647213) |

## What reviewers say

### Thinventory Maintenance

[App page](https://appshunter.io/ios/app/thinventory-maintenance/id1471128292)

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

**In-app purchases:** none


### Field Ascend Engineers

[App page](https://appshunter.io/ios/app/field-ascend-engineers/id6755081317)

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

**In-app purchases:** none


## Frequently asked questions

### Is Thinventory Maintenance free?

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

### Is Field Ascend Engineers free?

Field Ascend Engineers is free to download, with no in-app purchases.

### Do Thinventory Maintenance or Field Ascend Engineers have ads?

Neither Thinventory Maintenance nor Field Ascend Engineers shows ads.

### Which is updated more often, Thinventory Maintenance or Field Ascend Engineers?

Thinventory Maintenance ships an update every 3 months, and Field Ascend Engineers every 2 days. Most recently, Thinventory Maintenance was updated on October 26, 2026 and Field Ascend Engineers on October 22, 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.*