# Percentage Calc vs Slango

Percentage Calc and Slango are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. Percentage Calc sells 4 in-app purchases, starting at $0.99 per 7 days and Slango sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Percentage Calc ships an update monthly, Slango every 3 weeks. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Percentage Calc | Slango |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/percentage-calc-calculator/id6450499183/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 24 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Ottorino Bruni](https://appshunter.io/developer/360574946) | [PhantomBuild](https://appshunter.io/developer/1837442327) |

## What reviewers say

### Percentage Calc

[App page](https://appshunter.io/ios/app/percentage-calc-calculator/id6450499183)

Simplify complex percentage calculations with a suite of tools for discounts, taxes, tips, and financial analysis. Quickly convert fractions, find original values, and compare amounts with ease. Save, share, and sync your calculations across devices.

**Highlights:** Fraction to Percentage Conversion, Reverse Percentage Calculator, ROI and CAGR Calculation, Discount and Increase Calculator, Proportional Split Calculator, Tip Calculator, Save and Share Calculations

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week | $0.99 | per 7 days |
| 1 Month | $2.99 | per month |
| 1 Year | $8.99 | per year |
| Forever | $17.99 | one-time |


### Slango

[App page](https://appshunter.io/ios/app/slango-gen-z-and-text-decoder/id6753944852)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Slango Premium Monthly | $3.99 | per month |
| Slango Premium Annual | $34.99 | per year |


## Frequently asked questions

### Is Percentage Calc free?

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

### Is Slango free?

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

### Do Percentage Calc or Slango have ads?

Neither Percentage Calc nor Slango shows ads.

### Which is updated more often, Percentage Calc or Slango?

Percentage Calc ships an update monthly, and Slango every 3 weeks. Most recently, Percentage Calc was updated on October 30, 2026 and Slango on October 25, 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.*