# IKOS SMS vs O

The clearest difference is review sentiment: O at 100% against IKOS SMS's 0%. O also leads on rating (5.0 vs 1.0) and update cadence (every 5 days vs every 2 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

O holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 0% of IKOS SMS's written reviews are positive against 100% of O's.

IKOS SMS ships an update every 2 months, O every 5 days. The most recent releases landed on October 30, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | IKOS SMS | O |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/ikos-sms/id6751810701/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/o-origin/id6803718541/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free | Free |
| Size | 39 MB | 163 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ming Da Tong Da Co.,Ltd.](https://appshunter.io/developer/1310191516) | [TEACHERGO CORP](https://appshunter.io/developer/1796727217) |

## What reviewers say

### IKOS SMS

[App page](https://appshunter.io/ios/app/ikos-sms/id6751810701)

Efficiently manage multiple SIM cards from devices like W3700 for centralized SMS sending/receiving, history lookup, and missed call alerts. Consolidate all your numbers into one device for enhanced communication convenience and work efficiency.

**Highlights:** Multi-SIM card management, Centralized SMS sending and receiving, SMS history lookup, Missed call reminders, Device compatibility (W3700)

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

**In-app purchases:** none


### O

[App page](https://appshunter.io/ios/app/o-origin/id6803718541)

This app uses haptic feedback and acoustic experiences to help manage stress and neural tension. It offers a dual-mode regulation experience through simple tap-and-hold interactions for relaxation and self-awareness.

**Highlights:** Dual-mode neuromodulation, Haptic micro-vibrations, Frequency-based acoustic experiences, Non-invasive digital experience, Quantified awareness tracking, AI conversation companion

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

**In-app purchases:** none


## Frequently asked questions

### Is IKOS SMS free?

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

### Is O free?

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

### Which has better reviews, IKOS SMS or O?

O is rated higher. IKOS SMS averages 1.0 out of 5 from 1 ratings, while O averages 5.0 from 1 ratings.

### Do IKOS SMS or O have ads?

Neither IKOS SMS nor O shows ads.

### Which is updated more often, IKOS SMS or O?

IKOS SMS ships an update every 2 months, and O every 5 days. Most recently, IKOS SMS was updated on October 30, 2026 and O on November 6, 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.*