# Data Tree Manager vs ByWhen

The clearest difference is in-app purchases: Data Tree Manager at none against ByWhen's 3. Data Tree Manager also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.0). ByWhen's advantage is update cadence (every 5 days vs every 3 weeks). On price and ads there is nothing between them.

Both are free to download. ByWhen sells 3 in-app purchases, starting at $4.99 per month. Data Tree Manager asks for nothing beyond the download.

Data Tree Manager ships an update every 3 weeks, ByWhen every 5 days. The most recent releases landed on October 11, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Data Tree Manager | ByWhen |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 2 MB | 10 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Vsevolod Migdisov](https://appshunter.io/developer/987566323) | [NiONlite LLC](https://appshunter.io/developer/1891899842) |

## What reviewers say

### Data Tree Manager

[App page](https://appshunter.io/ios/app/data-tree-manager/id1527102683)

**Features:** macOS Compatibility

**In-app purchases:** none


### ByWhen

[App page](https://appshunter.io/ios/app/bywhen-deadline-planner/id6778767584)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Annual Premium | $39.99 | per year |
| Lifetime Premium | $79.99 | one-time |


## Frequently asked questions

### Is Data Tree Manager free?

Data Tree Manager is free to download, with no in-app purchases.

### Is ByWhen free?

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

### Do Data Tree Manager or ByWhen have ads?

Neither Data Tree Manager nor ByWhen shows ads.

### Which is updated more often, Data Tree Manager or ByWhen?

Data Tree Manager ships an update every 3 weeks, and ByWhen every 5 days. Most recently, Data Tree Manager was updated on October 11, 2026 and ByWhen 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.*