WatchG30 vs The Public Variable
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WatchG30
Pilot a submarine to intercept incoming depth charges launched from a destroyer. Navigate through 10 increasingly challenging levels, each requiring you to intercept 10 charges to advance. Master the controls to fire and move your submarine effectively.
- Submarine control
- Depth charge interception
- 10 challenging levels
- Increasing difficulty
- Bonus phase progression
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Mission -------- You are on board a submarine, and your mission is to intercept the charges launched by the destroyer above you in the sea. You have 3 submarines. Complete the interceptions at different depth levels to proceed to the bonus phase. The game consists of 10 levels, each level faster than the previous one. To advance to the next level, you must intercept 10 depth charges. Controls --------- · Start button, begins the game. · M button, moves the submarine. · F button, fires the submarine. Good luck and have fun.
The Public Variable
Experience a unique augmented reality theatre piece exploring perspective and communication. This evolving digital space will eventually host the full production, offering an immersive artistic experience accessible from anywhere.
- Augmented reality theatre
- Perspective exploration
- Immersive digital space
- Evolving content
- Accessible anywhere
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I'm building a feature length AR experience, scene by scene. A piece of theatre about perspective, and how we stopped hearing each other. And how we might fix it. And, through this platform, a piece of theatre you can experience wherever you are. This space will be updating and expanding until it eventually contains the entire piece, and more. Your support couldn't mean more than it would right now. publicvariabletheatre.org
Screenshots
Verdict
The clearest difference is price: The Public Variable at Free against WatchG30's $1.99. The Public Variable also leads on rating (5.0 vs 4.0) and update cadence (every 2 weeks vs every 40 months). On ratings volume, 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
The Public Variable is free to download; WatchG30 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
The Public Variable holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
WatchG30 ships an update every 40 months, The Public Variable every 2 weeks. The most recent releases landed on October 22, 2026 and October 12, 2026 respectively.
| Parameter | WatchG30 | The Public Variable |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.0 (1 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 40 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 7 MB | 1.4 GB |
| Age rating | 4+ | 17+ |
| Developer | Ivan Cerra de Castro | John Sullivan |
Customer experience
WatchG30
The Public Variable
In-app purchases
WatchG30
No in-app purchases
The Public Variable
No in-app purchases
