# PandaCalc vs Ring Ruler

PandaCalc and Ring Ruler are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | PandaCalc | Ring Ruler |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | — |
| Size | 25 MB | 21 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [友 周](https://appshunter.io/developer/1780906506) | [David Sent](https://appshunter.io/developer/1696600749) |

## What reviewers say

### PandaCalc

[App page](https://appshunter.io/ios/app/pandacalc-notes-calculator/id6756593418)

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

**In-app purchases:** none


### Ring Ruler

[App page](https://appshunter.io/ios/app/ring-ruler/id6757495549)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PandaCalc free?

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

### Is Ring Ruler free?

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

### Do PandaCalc or Ring Ruler have ads?

Neither PandaCalc nor Ring Ruler shows ads.

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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.*