# Onoff Numbers vs SIPHER

The clearest difference is review sentiment: SIPHER at 75% against Onoff Numbers's 44%. SIPHER also leads on rating (5.0 vs 4.6). Onoff Numbers's advantage is ratings volume (793 vs 7). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Onoff Numbers sells 9 in-app purchases, starting at $7.99 per month and SIPHER sells 6 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

SIPHER holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Onoff Numbers has 793 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 44% of Onoff Numbers's written reviews are positive against 75% of SIPHER's.

Onoff Numbers ships an update fortnightly, SIPHER every 2 weeks. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Onoff Numbers | SIPHER |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (793 ratings)](https://appshunter.io/ios/app/onoff-numbers/id942996042/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/sipher-invisible-messages/id6779144914/reviews)** |
| Number of ratings | **793** | 7 |
| Positive reviews | 43.8% of reviews | **75.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 319 MB | 89 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [ONOFFAPP](https://appshunter.io/developer/939656604) | [YM Labs (FZC)](https://appshunter.io/developer/6778821381) |

## What reviewers say

### Onoff Numbers

[App page](https://appshunter.io/ios/app/onoff-numbers/id942996042)

Get a second phone number instantly through an app, without needing a new SIM card or device. Keep your personal and professional lives separate, protect your privacy, and make international calls at low costs. Manage calls, SMS, and voicemail all in one place.

**Highlights:** Second phone number, Separate professional and personal lines, Privacy protection, Low-cost international calls, Integrated visual voicemail, Port existing numbers, Numbers from 30+ countries

**Features:** Siri integration, Apple Wallet, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Onoff Premium | $7.99 | per month |
| 1 month | $10.99 | per month |
| 1 month | $17.99 | per month |
| 1 month | $21.49 | per month |
| 100 credits | $1.99 | one-time |
| 1000 credits | $9.99 | one-time |
| 1 month | $10.99 | one-time |
| 1 month | $12.99 | one-time |
| 1 month | $17.99 | one-time |

**What reviewers like**

- 💯 Excellent app
- 🚀 Simple and easy to use
- 🔒 Secure and private
- 📱 Great for business/travel

**What reviewers complain about**

- 🐛 Unreliable service
- 🔒 Privacy concerns
- 💰 Expensive pricing
- 🚫 Limited functionality

**Reported bugs**

- Calls and texts not going through
- Account validation issues
- Frequent app crashes
- Syncing problems with contacts

**Requested features**

- Add more country support
- Improve call and SMS reliability
- Introduce VoIP calling
- Offer better customer support


### SIPHER

[App page](https://appshunter.io/ios/app/sipher-invisible-messages/id6779144914)

This app allows you to create discreet conversations that appear normal on the surface, protecting your private messages. It generates realistic chat threads from a customizable keyboard, ensuring your privacy is maintained even when others are looking.

**Highlights:** Create cover conversations, Generate realistic chat threads, Discreet messaging from keyboard, Customizable cover topics, Privacy protection, Pro subscription for enhanced features

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sipher Weekly | $5.99 | per 7 days |
| Sipher Premium Weekly | $6.99 | per 7 days |
| Sipher Yearly Offer | $29.99 | per year |
| Sipher Yearly Trial | $29.99 | per year |
| Sipher Premium Yearly | $69.99 | per year |
| Sipher Yearly | $99.99 | per year |


## Frequently asked questions

### Is Onoff Numbers free?

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

### Is SIPHER free?

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

### Which has better reviews, Onoff Numbers or SIPHER?

SIPHER is rated higher. Onoff Numbers averages 4.6 out of 5 from 793 ratings, while SIPHER averages 5.0 from 7 ratings.

### Do Onoff Numbers or SIPHER have ads?

Neither Onoff Numbers nor SIPHER shows ads.

### Which is updated more often, Onoff Numbers or SIPHER?

Onoff Numbers ships an update fortnightly, and SIPHER every 2 weeks. Most recently, Onoff Numbers was updated on November 1, 2026 and SIPHER on November 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*