# Resolutioner vs O

The clearest difference is price: O at Free against Resolutioner's $0.99. O also leads on update cadence (fortnightly vs every 33 months) and ratings volume (8.6K vs 946). Resolutioner's advantage is ads (none vs shown) and review sentiment (80% vs 63%). On rating, in-app purchases, monetization model and chart position there is nothing between them.

O is free to download; Resolutioner costs $0.99 up front. Resolutioner sells 5 one-off in-app purchases and O sells 23 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Resolutioner against 4.5 for O. That said, the two scores are not equally well evidenced: O has 8.6K ratings behind it against 946, so its average is the more settled of the two. Written reviews are what separate them: 80% of Resolutioner's written reviews are positive against 63% of O's.

Resolutioner ships an update every 33 months, O fortnightly. The most recent releases landed on October 18, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Resolutioner | O |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.5 (946 ratings)](https://appshunter.io/ios/app/resolutioner/id1563852783/reviews) | **[4.5 (8.6K ratings)](https://appshunter.io/ios/app/o-kam-pro/id1602054864/reviews)** |
| Number of ratings | 946 | **8.6K** |
| Positive reviews | **79.6% of reviews** | 62.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 33 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#4** | #6 |
| Size | 40 MB | 366 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sun Apps, LLC](https://appshunter.io/developer/1465505382) | [Shenzhen VeePai IoT Intelligent Technology LLC](https://appshunter.io/developer/557459166) |

## What reviewers say

### Resolutioner

[App page](https://appshunter.io/ios/app/resolutioner/id1563852783)

**Currently charting:** #4 Top Paid · Developer Tools, #183 Top Grossing · Developer Tools (US App Store)

This utility app helps you calculate and scale screen resolutions based on aspect ratios. Save and manage your frequently used resolutions for easy access. Sync your presets across Apple devices.

**Highlights:** Calculate resolutions by filling in one side, Edit aspect ratios easily, Scale resolutions up or down, Save and name custom resolution presets, Edit saved presets, Sync presets via iCloud

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip Jar - $0.99 | $0.99 | one-time |
| Tip Jar - $1.99 | $1.99 | one-time |
| Tip Jar - $2.99 | $2.99 | one-time |
| Tip Jar - $4.99 | $4.99 | one-time |
| Tip Jar - $9.99 | $9.99 | one-time |

**What reviewers like**

- 👍 Very good app
- 👍 Excellent for calculations
- 👍 Useful for graphic designers
- 👍 Works offline
- 👍 Good for Free Fire

**What reviewers complain about**

- 🐛 Resolution not changing
- 🐛 App doesn't work
- 🐛 Buggy and bad
- 🐛 Cannot submit resolution
- 🐛 Screen size remains the same

**Reported bugs**

- Resolution does not change
- App does not work
- Screen size remains the same
- App is buggy
- Cannot submit resolution

**Requested features**

- Add sync to device option
- Add button to improve/submit resolution
- Allow reordering of presets for better organization
- Ability to use created scales in computer settings


### O

[App page](https://appshunter.io/ios/app/o-kam-pro/id1602054864)

**Currently charting:** #6 Top Free · Developer Tools, #28 Top Grossing · Developer Tools (US App Store)

Monitor your home remotely with real-time video surveillance. Access cloud storage, receive alarm notifications, and communicate via two-way audio. Capture photos and videos for convenient home management.

**Highlights:** Real-time video monitoring, Cloud storage playback, Alarm push notifications, Two-way voice intercom, Photo and video capture, Simple operation and design

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

**In-app purchases (23)**

| Purchase | Price | Billing |
| --- | --- | --- |
| monthly card-7(SA tryout) | $0.99 | one-time |
| monthly card-7(tryout) | $0.99 | one-time |
| monthly card-7(EU tryout) | $0.99 | one-time |
| monthly card-7(JP tryout) | $0.99 | one-time |
| monthly card-7(AE tryout) | $0.99 | one-time |
| monthly card | $1.99 | one-time |
| monthly card | $2.99 | one-time |
| monthly card(JP)-7 | $2.99 | one-time |
| monthly card- 7 | $3.99 | one-time |
| monthly card- 30 | $4.99 | one-time |
| monthly card | $5.99 | one-time |
| monthly card(JP)- 30 | $5.99 | one-time |
| monthly card(SA)- 30 | $5.99 | one-time |
| half year card | $6.99 | one-time |
| monthly card(AE)-30 | $7.99 | one-time |
| yearly card | $12.99 | one-time |
| half year card | $14.99 | one-time |
| yearly card | $24.99 | one-time |
| half year card -7 | $28.99 | one-time |
| half year card | $31.99 | one-time |
| yearly card | $49.99 | one-time |
| yearly card - 7 | $49.99 | one-time |
| half year card -30 | $74.99 | one-time |

**What reviewers like**

- 🚀 Convenient
- 🚀 Easy to use
- 🚀 Great picture quality
- 🚀 Excellent value
- 🚀 Reliable

**What reviewers complain about**

- 🐛 Connectivity issues
- 🐛 Unreliable motion detection
- 🔋 Battery life concerns
- 🔍 Difficult to navigate app
- 💸 Expensive subscription

**Reported bugs**

- Frequent app crashes
- Inability to view recorded footage
- Inconsistent camera performance after updates

**Requested features**

- Easier cloud storage management
- Improved motion detection sensitivity
- More customization options
- Ability to disable microphone/speakers
- Smoother app performance


## Frequently asked questions

### Is Resolutioner free?

Resolutioner costs $0.99, and also offers in-app purchases.

### Is O free?

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

### Which has better reviews, Resolutioner or O?

O is rated higher. Resolutioner averages 4.5 out of 5 from 946 ratings, while O averages 4.5 from 8.6K ratings.

### Do Resolutioner or O have ads?

O shows ads; Resolutioner does not.

### Which is updated more often, Resolutioner or O?

Resolutioner ships an update every 33 months, and O fortnightly. Most recently, Resolutioner was updated on October 18, 2026 and O on October 20, 2026.

### Which is more popular, Resolutioner or O?

Resolutioner currently peaks at #4 in the App Store charts, and O at #6. Chart position reflects recent download velocity rather than total install base.

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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.*