Omni Sub vs FairSpin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Omni Sub
This application is an acoustical simulation tool designed for audio engineers. It allows for the simulation of source interactions at low frequencies, including various sub array configurations.
- Low frequency simulation
- Source interaction simulation
- Cardioid sub array simulation
- End-fired sub array simulation
- Acoustical analysis
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Acoustical simulation tool. Source interaction at low frequencies simulation. Sub arrays like Cardioid, end fired and more.
FairSpin
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Tired of arguing about chores? FairSpin makes household task rotation truly fair. Most chore apps just count tasks. But taking out the trash is not the same as deep-cleaning the kitchen. FairSpin uses a weighted rotation algorithm that considers effort level, so everyone carries their fair share. SET UP IN 60 SECONDS Add your household members, pick from 100+ preset chores, and start rotating immediately. No complicated settings, no learning curve. FAIR ROTATION ENGINE Each chore has an effort level from Easy to Hard. FairSpin tracks who has done what and automatically assigns the next chore to the person with the lightest recent workload. No more "I always do the hard stuff" complaints. HOW IT WORKS - Add family or household members - Choose chores from 100+ presets or create your own - Set effort levels: Easy, Medium, or Hard - FairSpin automatically rotates assignments - Track completion and see who is doing their share FAIR SCORE DASHBOARD See at a glance how work is distributed. The Fair Score shows each member's contribution as a percentage, so nobody can hide from their share. KEY FEATURES - Weighted fair rotation algorithm - 100+ preset chores across 8 categories - Effort levels: Easy, Medium, Hard - Fair Score dashboard with visual breakdown - Rotation calendar with weekly view - Local notifications for chore reminders - iCloud sync across devices - No subscription required ONE-TIME PURCHASE FairSpin is $1.99 once. No monthly fees, no yearly subscriptions, no hidden costs. Compare that to other chore apps charging $25-50 per year. PRIVACY FIRST All data stays on your device. No accounts required. No analytics. No data sold to third parties. Optional iCloud sync keeps everything in your personal iCloud only. FairSpin: Because fair is fair.
Screenshots
Verdict
The clearest difference is price: FairSpin at $1.99 against Omni Sub's $34.99. Omni Sub's advantage is iOS requirement (13.0.0 vs 17). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Omni Sub costs $34.99 and FairSpin $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Omni Sub | FairSpin |
|---|---|---|
| Price | $34.99 | $1.99 — better |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 4 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0.0 — better | 17 |
| Further details — not scored | ||
| Size | 13 MB | 3 MB |
| Age rating | 4+ | 9+ |
| Developer | sebastian rivas | 贺 周 |
In-app purchases
Omni Sub
No in-app purchases
FairSpin
No in-app purchases





