# TBD vs SpecPad

The clearest difference is in-app purchases: TBD at none against SpecPad's 3. TBD also leads on iOS requirement (13.0 vs 18.0). SpecPad's advantage is update cadence (every 5 days vs every 5 weeks). On price, ads and device support there is nothing between them.

Both are free to download. SpecPad sells 3 in-app purchases, starting at $2.99 per month. TBD asks for nothing beyond the download.

TBD ships an update every 5 weeks, SpecPad every 5 days. The most recent releases landed on September 21, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | TBD | SpecPad |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Size | 19 MB | 19 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Dashi Wisdom Technology Co., Ltd.](https://appshunter.io/developer/1822219570) | [John Steinmetz](https://appshunter.io/developer/1881750415) |

## What reviewers say

### TBD

[App page](https://appshunter.io/ios/app/tbd-flowmeter/id1632862012)

**Features:** macOS Compatibility

**In-app purchases:** none


### SpecPad

[App page](https://appshunter.io/ios/app/specpad/id6787570085)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SpecPad Pro - Monthly | $2.99 | per month |
| SpecPad Pro - Yearly | $17.99 | per year |
| SpecPad Pro - Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is TBD free?

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

### Is SpecPad free?

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

### Do TBD or SpecPad have ads?

Neither TBD nor SpecPad shows ads.

### Which is updated more often, TBD or SpecPad?

TBD ships an update every 5 weeks, and SpecPad every 5 days. Most recently, TBD was updated on September 21, 2026 and SpecPad on September 13, 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.*