# CalcVerter vs Recalla

The clearest difference is iOS requirement: Recalla at 15.5 against CalcVerter's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. CalcVerter sells 16 in-app purchases, starting at $0.99 per month and Recalla sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

CalcVerter ships an update monthly, Recalla every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | CalcVerter | Recalla |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (13 ratings)](https://appshunter.io/ios/app/calcverter/id1006610733/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 81.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Freemium | — |
| Size | 161 MB | 67 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [loay setrak](https://appshunter.io/developer/923932983) | [Jiarui Shen](https://appshunter.io/developer/1878819609) |

## What reviewers say

### CalcVerter

[App page](https://appshunter.io/ios/app/calcverter/id1006610733)

This comprehensive utility app offers a vast array of tools for calculations, conversions, and scientific exploration. It features customizable calculators, unit and base converters, time zone tools, and a science hub with constants and a periodic table. Personalize your experience with themes, widgets, and advanced statistics.

**Highlights:** Customizable calculators with multiple registers, Extensive unit and base conversion tools, Time zone and date calculation utilities, Science hub with constants and periodic table, Password, UUID, and random number generators, QR code creation and scanning, Advanced statistics and data visualization

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Premium | $0.99 | per month |
| 6 Months Premium | $3.99 | per 6 months |
| 1 Year Premium | $6.99 | per year |
| Premium (Previous Purchasers) | Free | one-time |
| Small Tip | $0.99 | one-time |
| Elements Pack | $1.99 | one-time |
| Generators Pack | $1.99 | one-time |
| Date & Time Pack | $1.99 | one-time |
| Developer Pack | $1.99 | one-time |
| Statistics Pack | $1.99 | one-time |
| Theme Pack | $1.99 | one-time |
| Converter Pack | $2.99 | one-time |
| Calculator Pack | $2.99 | one-time |
| Formulas Pack | $2.99 | one-time |
| Enormous Tip | $6.99 | one-time |
| Lifetime Premium | $14.99 | one-time |


### Recalla

[App page](https://appshunter.io/ios/app/recalla/id6766220935)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Recalla Gateway Monthly | $2.99 | per month |
| Recalla Gateway Yearly | $24.99 | per year |


## Frequently asked questions

### Is CalcVerter free?

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

### Is Recalla free?

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

### Do CalcVerter or Recalla have ads?

Neither CalcVerter nor Recalla shows ads.

### Which is updated more often, CalcVerter or Recalla?

CalcVerter ships an update monthly, and Recalla every 2 weeks. Most recently, CalcVerter was updated on October 24, 2026 and Recalla on October 24, 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.*