# Cellio: Learn Excel Formulas — Spreadsheet Lessons & Practice

> Spreadsheet Lessons & Practice (iPhone/iPad app by Ayoub Farid.)

- Source: https://appshunter.io/ios/app/cellio-learn-excel-formulas/id6829892879 (this page in markdown: same URL + `.md`)
- Developer: [Ayoub Farid](https://appshunter.io/developer/1804454904)
- Category: Education, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 41 MB
- Languages: American English, Arabic, Croatian, Czech, Danish, Dutch, Filipino, Finnish, French (France), German (Germany) and 23 more
- Released: 2026-11-06
- Data updated: 2026-11-06

## What is Cellio?

Learn spreadsheet formulas the fun way, in a few minutes a day.

Cellio teaches you Excel and Google Sheets formulas with short, game-like lessons. Celly, your friendly spreadsheet buddy, guides you through every step. No long videos, no dry manuals. You learn by doing.

LEARN BY DOING
• Bite-sized lessons that take about 2 minutes
• Tap cells and function keys to build formulas, no typing marathons
• Every answer is calculated on real data and checked instantly
• Wrong answer? You get a clear reason, like "range too short" or "missing $"

WHAT YOU'LL LEARN
• Your first formulas: =, SUM, AVERAGE, MIN, MAX and COUNT
• Fill down and lock cells with $ (absolute references)
• Rates, totals and profit calculations on real-life tables
• Coming soon: IF, COUNTIF, SUMIFS, VLOOKUP, XLOOKUP and cleaning messy data

BUILT FOR YOUR GOAL
• Getting ready for an Excel test for a job interview
• Working faster with spreadsheets at your job
• School, university or switching to a data career
Tell us your goal and daily time, and Cellio builds a plan around it.

STAY MOTIVATED
• Daily streaks and XP
• A clear path from your first formula to confident spreadsheet skills
• Works the same in Microsoft Excel and Google Sheets

CELLIO PRO
Cellio Pro unlocks every unit and unlimited hearts.
• Yearly plan 
• Weekly plan
Payment is charged to your Apple ID account at confirmation of purchase (or at the end of the free trial). Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. You can manage and cancel subscriptions in your App Store account settings after purchase.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vSPBPZ4NE9c5UUpb_XmqSXM78A58zdlXKU6w3Tu5bEKR57SvBheNdSzB6IRyX5W_C-TB49fFdhTcSRs/pub

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Cellio Weekly | $2.99 | per 7 days |
| Cellio Yearly | $24.99 | per year |


## Is Cellio safe?

Not enough ratings yet to assess Cellio.

## Is Cellio legit?

Cellio: Learn Excel Formulas appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Cellio is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-11-06

No release notes.

## More apps by Ayoub Farid

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- [Refixo – Restore Old Photos](https://appshunter.io/ios/app/refixo-restore-old-photos/id6757333431)

All apps by Ayoub Farid: https://appshunter.io/developer/1804454904

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-06.*