# Attio vs Summa One

The clearest difference is in-app purchases: Attio at none against Summa One's 2. Summa One's advantage is update cadence (every 3 days vs every 2 weeks) and iOS requirement (17.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Summa One sells 2 in-app purchases, starting at $4.99 per month. Attio asks for nothing beyond the download.

Attio ships an update every 2 weeks, Summa One every 3 days. The most recent releases landed on October 29, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Attio | Summa One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (30 ratings)](https://appshunter.io/ios/app/attio/id1511545395/reviews)** | — |
| Number of ratings | **30** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | Free | — |
| Size | 93 MB | 18 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Attio Limited](https://appshunter.io/developer/1321570156) | [Gage Dunstan](https://appshunter.io/developer/1725752504) |

## What reviewers say

### Attio

[App page](https://appshunter.io/ios/app/attio/id1511545395)

This CRM platform helps businesses build, grow, and scale relationships. Access powerful features on your mobile device to manage notes, emails, pipelines, and team updates in real-time.

**Highlights:** Real-time note creation and editing, Email and permission management, Pipeline tracking and list updates, On-the-go record entry, Meeting schedule task management, Instant team update notifications

**Features:** Vision Pro support

**In-app purchases:** none


### Summa One

[App page](https://appshunter.io/ios/app/summa-one/id6756936489)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simple CRM - Monthly | $4.99 | per month |
| Simple CRM - Yearly | $39.99 | per year |


## Frequently asked questions

### Is Attio free?

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

### Is Summa One free?

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

### Do Attio or Summa One have ads?

Neither Attio nor Summa One shows ads.

### Which is updated more often, Attio or Summa One?

Attio ships an update every 2 weeks, and Summa One every 3 days. Most recently, Attio was updated on October 29, 2026 and Summa One on September 26, 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.*