# OnSIP vs Keap Mobile

The clearest difference is rating: Keap Mobile at 4.4 against OnSIP's 2.3. Keap Mobile also leads on review sentiment (29% vs 8%) and ratings volume (1.8K vs 71). OnSIP's advantage is in-app purchases (none vs 10). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Keap Mobile sells 10 in-app purchases, starting at $9.99 per month. OnSIP asks for nothing beyond the download.

Keap Mobile holds the better App Store score, 4.4 against 2.3. That said, the two scores are not equally well evidenced: Keap Mobile has 1.8K ratings behind it against 71, so its average is the more settled of the two. Written reviews point the same way: 8% of OnSIP's written reviews are positive against 29% of Keap Mobile's.

OnSIP ships an update every 2 months, Keap Mobile every 6 weeks. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | OnSIP | Keap Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (71 ratings)](https://appshunter.io/ios/app/onsip/id1253050184/reviews) | **[4.4 (1.8K ratings)](https://appshunter.io/ios/app/keap-mobile/id1421097870/reviews)** |
| Number of ratings | 71 | **1.8K** |
| Positive reviews | 7.7% of reviews | **28.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 26 MB | 107 MB |
| Requires iOS | 17.4 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [OnSIP](https://appshunter.io/developer/1253050183) | [Infusionsoft](https://appshunter.io/developer/646076388) |

## What reviewers say

### OnSIP

[App page](https://appshunter.io/ios/app/onsip/id1253050184)

This app extends your business phone system to your mobile device, enabling HD voice and video calls, contact monitoring, and voicemail management. Stay connected with clients and colleagues from anywhere, without needing extra hardware.

**Highlights:** HD voice and video calls, Voicemail management, Contact availability monitoring, Call history, Remote work connectivity

**Features:** Vision Pro support

**In-app purchases:** none


### Keap Mobile

[App page](https://appshunter.io/ios/app/keap-mobile/id1421097870)

Manage customer information, tasks, and notes from anywhere. This app provides mobile access to your CRM, helping you stay organized and make a great impression. It includes features like a business card scanner, appointment scheduling, and payment processing.

**Highlights:** Add/access customer info, tasks, and notes, Mobile reminders and alerts, Business card scanner, Contact import, Appointment scheduler, Accept payments, Business line features (caller ID, auto-replies)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Keap Mobile | $9.99 | per month |
| Keap Mobile | $9.99 | per month |
| Keap Mobile | $14.99 | per month |
| Keap Mobile | $14.99 | per month |
| Keap Mobile | $19.99 | per month |
| Keap Mobile | $19.99 | per month |
| Keap Mobile | $49.99 | per 6 months |
| Keap Mobile Semi-Annual Plan | $79.99 | per 6 months |
| Keap Mobile Annual Plan | $99.99 | per year |
| Keap Mobile Annual Plan | $149.99 | per year |

**What reviewers like**

- 🚀 Powerful CRM features
- 👍 Sleek and intuitive app design
- 💡 Helpful for organizing business
- 🔒 Secure and reliable

**What reviewers complain about**

- 🐛 Frequent crashes and freezes
- 🔍 Limited functionality compared to desktop version
- 🔋 Drains battery quickly
- 🤔 Confusing login/account setup process

**Reported bugs**

- Contacts not syncing properly
- Text messaging issues and unreliable notifications
- Overlapping UI elements and unresponsive buttons

**Requested features**

- Ability to port existing phone numbers
- More customization options
- Improved calendar and scheduling features
- Better email integration


## Frequently asked questions

### Is OnSIP free?

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

### Is Keap Mobile free?

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

### Which has better reviews, OnSIP or Keap Mobile?

Keap Mobile is rated higher. OnSIP averages 2.3 out of 5 from 71 ratings, while Keap Mobile averages 4.4 from 1.8K ratings.

### Do OnSIP or Keap Mobile have ads?

Neither OnSIP nor Keap Mobile shows ads.

### Which is updated more often, OnSIP or Keap Mobile?

OnSIP ships an update every 2 months, and Keap Mobile every 6 weeks. Most recently, OnSIP was updated on October 24, 2026 and Keap Mobile on October 29, 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.*