Sphere TD vs SettleUp
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Sphere TD
A complex tower defense game where you build and upgrade towers to defend against waves of spheres. Strategize with deep customization, resource management, and research to overcome challenges. Offers extensive replayability with numerous levels and modes.
- Tower and projectile customization
- 30 base towers with 28+ stats
- 33 mods with millions of combinations
- Research and crafting system
- Tower inventory and energy management
- 50 hand-crafted levels and endless mode
- Offline and online play with cloud sync
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Sphere TD is a tower defense game with one difference: there are no preset towers. You build every tower yourself by combining mods to spam more projectiles. UNIQUE FEATURES - Build & mod every tower. There are no preset towers. - Defend each map with 5 towers. Max them out and spam more projectiles. - Split your shots, bounce, multiply, shock, burn. The build is up to you. - Your base can fly, towers and all. Explore the maps and mine ores. - Research and craft mods. Just don't run out of energy. WHAT IS IN THE GAME - 41 towers, each with its own grid layout and function - 33 mods, each with tiers, MK upgrades, a B-Side function, and 3 perks, for over a million tower builds - 50 hand-crafted maps with three objectives each - Endless mode after map 50, plus map-specific challenges - A research tree, mod crafting, and a trader - Spheres that scale into elites, bosses, armored, shielded, cloaked and flying - Offline play, with cloud sync and leaderboards - Cross platform: mobile and desktop NO NONSENSE No pay to win. No time gates. No paywalls. No ad spam. No loot boxes. Funding the Galatium Academy is appreciated, never required. MESSAGE FROM THE DEV Hi, I'm Alex, a solo developer, and Sphere TD is my first game. If you like tower defense and building your own towers, you should feel right at home. Come discuss tower builds with other friendly cadets on Discord. I am committed to 10 years of support. You want it, I'll make it. Ready to join the Galatium Academy?
SettleUp
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Build, trade, and settle your way to victory in this beautifully crafted reimagining of the classic settlement-building strategy game. Roll the dice. Gather resources. Build roads, settlements, and cities. Trade with rivals. Outwit AI opponents that negotiate, chat, and strategize like real players. KEY FEATURES • Stunning 3D Board — A hexagonal world rendered in SceneKit with smooth pinch-to-zoom and dynamic camera controls • AI That Talks Back — Distinct AI personalities, from chatty newcomers to ruthless experts, that propose trades and react to your every move • Online & Solo — Real-time multiplayer with friends and worldwide opponents, plus rich AI-only games when you want to settle alone • Voice Chat — Talk strategy with friends mid-game (Premium) • The Complete Ruleset — Settlements, cities, roads, ports, development cards, longest road, largest army, and the ever-pesky robber • Post-Game Analysis — AI breaks down what you did right, wrong, and what you could have done better • Watch & Spectate — follow a game live as an observer with a Spectator Code PREMIUM One subscription unlocks ad-free play, voice chat in online games, full post-game AI analysis, move hints, and offline mode. Every AI difficulty, online multiplayer, private lobbies, ranked play, and every board theme are free for everyone. Whether you're learning the ropes against an Easy AI or grinding ranked matches against humans worldwide, SettleUp brings the tabletop classic to your iPhone and iPad with personality, polish, and a board that feels alive. Optimized for iPhone and iPad. Offline mode requires Premium or a one-time purchase. — Subscription terms: SettleUp Premium is offered as a monthly or annual auto-renewing subscription. Payment will be charged to your App Store account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions in your App Store account settings after purchase. Terms of Use: https://settleupgame.com/terms Privacy Policy: https://settleupgame.com/privacy
Screenshots
Verdict
The clearest difference is update cadence: Sphere TD at every 3 days against SettleUp's fortnightly. Sphere TD also leads on iOS requirement (15.0 vs 17.0). On price, 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
Both are free to download. Sphere TD sells 10 one-off in-app purchases and SettleUp sells 5 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Sphere TD ships an update every 3 days, SettleUp fortnightly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | Sphere TD | SettleUp |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (10 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 3 days — better | Fortnightly |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 316 MB | 75 MB |
| Age rating | 12+ | 4+ |
| Developer | StandardIssueGames | Treeport Holdings LLC |
In-app purchases
Sphere TD
- Au Field Ration$4.99
- Defender Starter Pack$7.99
- Au Supply Cache$9.99
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- Galatium Express Token$9.99
- Galatium Academy Pack$14.99
- Shadow Broker Vantage$19.99
- Au Enterprise Fund$24.99
- Flux Enrichment Grant$24.99
- Au Strategic Stockpile$49.99
- Au Global Reserve$99.99
SettleUp
- Premium Monthly7 Days trial$4.991 Month
- Premium+ Monthly7 Days trial$9.991 Month
- Premium Annual7 Days trial$49.991 Year
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- Premium+ Annual7 Days trial$99.991 Year
- Offline Mode Lifetime$9.99









