# Cal C vs Onefeed!

The clearest difference is rating: Cal C at 4.6 against Onefeed!'s 4.0. Cal C also leads on in-app purchases (none vs 1) and review sentiment (50% vs 33%). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Onefeed! sells 1 in-app purchase, starting at $0.99 per 3 months. Cal C asks for nothing beyond the download.

Cal C holds the better App Store score, 4.6 against 4.0. Both are backed by a comparable volume of ratings — 8 and 4 respectively. Written reviews point the same way: 50% of Cal C's written reviews are positive against 33% of Onefeed!'s.

Cal C ships an update every 2 weeks, Onefeed! weekly. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Cal C | Onefeed! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (8 ratings)](https://appshunter.io/ios/app/cal-c-scientific-calculator/id6760196537/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/onefeed/id6763710264/reviews) |
| Number of ratings | **8** | 4 |
| Positive reviews | **50.0% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free | Free |
| Size | 30 MB | 26 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Pinki .](https://appshunter.io/developer/1863734565) | [Pierce Kotnik](https://appshunter.io/developer/1895450734) |

## What reviewers say

### Cal C

[App page](https://appshunter.io/ios/app/cal-c-scientific-calculator/id6760196537)

This app consolidates numerous essential calculators into a single, user-friendly interface. It offers tools for scientific, financial, programmer, graphing, and statistical calculations, alongside unit and currency conversions. Solve equations, plot graphs, and manage bills without needing multiple applications.

**Highlights:** Comprehensive calculator suite, Unit and currency conversion, Equation solver, Graphing capabilities, Financial and programmer tools, History and favorites

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

**In-app purchases:** none


### Onefeed!

[App page](https://appshunter.io/ios/app/onefeed/id6763710264)

Consolidate content from numerous social media platforms and RSS feeds into a single, unified timeline. Enjoy a clean interface without algorithmic manipulation and without needing to create an account.

**Highlights:** Unified timeline for multiple platforms, Supports Reddit, Twitter/X, Instagram, YouTube, and more, No algorithmic feed manipulation, No account required, Supports RSS feeds, Clean interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Onefeed+ Subscription | $0.99 | per 3 months |


## Frequently asked questions

### Is Cal C free?

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

### Is Onefeed! free?

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

### Which has better reviews, Cal C or Onefeed!?

Cal C is rated higher. Cal C averages 4.6 out of 5 from 8 ratings, while Onefeed! averages 4.0 from 4 ratings.

### Do Cal C or Onefeed! have ads?

Neither Cal C nor Onefeed! shows ads.

### Which is updated more often, Cal C or Onefeed!?

Cal C ships an update every 2 weeks, and Onefeed! weekly. Most recently, Cal C was updated on November 9, 2026 and Onefeed! on November 5, 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.*