# RulerBasic vs DecibelPeak

The clearest difference is in-app purchases: DecibelPeak at none against RulerBasic's 4. RulerBasic's advantage is update cadence (fortnightly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. RulerBasic sells 4 in-app purchases, starting at $2.99 per month. DecibelPeak asks for nothing beyond the download.

RulerBasic ships an update fortnightly, DecibelPeak every 4 months. The most recent releases landed on August 2, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | RulerBasic | DecibelPeak |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Size | 15 MB | 2 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hakan Kaba](https://appshunter.io/developer/1830840381) | [Andre Frelicot](https://appshunter.io/developer/1055019120) |

## What reviewers say

### RulerBasic

[App page](https://appshunter.io/ios/app/rulerbasic/id6752628913)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Room Scan Pro | $2.99 | per month |
| Small Tip | $1.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


### DecibelPeak

[App page](https://appshunter.io/ios/app/decibelpeak/id6752702602)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RulerBasic free?

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

### Is DecibelPeak free?

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

### Do RulerBasic or DecibelPeak have ads?

Neither RulerBasic nor DecibelPeak shows ads.

### Which is updated more often, RulerBasic or DecibelPeak?

RulerBasic ships an update fortnightly, and DecibelPeak every 4 months. Most recently, RulerBasic was updated on August 2, 2026 and DecibelPeak on September 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*