SudokuSpire vs Quietblade
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
SudokuSpire
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Sudoku Spire turns the world's favourite logic puzzle into a roguelike climb. Every board is a fresh, hand-checked sudoku with exactly one solution — fill each row, column, and box, then climb the branching Spire to the next. But now a wrong number costs health, and running out ends the run. The calm of pure deduction, finally with stakes and a reason to dive back in. FAIR BY DESIGN There is no luck here. Every board is procedurally generated and verified to have a single solution, so you can always reason your way to the answer — never guess. Relics change the math in your favour; they never replace deduction with chance. RELICS THAT BEND THE RULES Clear boards to claim relics and stack a build that's yours alone: - Lantern reveals correct cells at the start of every board - Surveyor's Glass hands you a full solved box - Aegis Charm forgives your first mistake - Jeweler's Loupe auto-fills your candidate notes - Second Wind pulls you back from a lethal slip, once per run No two ascents play the same. CLIMB, FALL, CLIMB AGAIN Boards grow from a gentle 4×4 up to full 9×9, and Wardens at each milestone fight fair but hard — deducing from fewer clues, on bigger grids, or with your notes disabled. Every board you clear banks Shards, even on a failed run, to spend on permanent upgrades: more health, a starting relic, richer rewards. You always climb back stronger. SUDOKU SPIRE PRO (one-time purchase) - Removes all ads - +1 maximum health every run - A free Heartstone relic at the start of every run - +25% Shards from every board Free players can unlock all Pro perks for 30 minutes by watching a short video — and revive once per run the same way. Sudoku Spire shows non-personalized ads only and does not track you across other apps. If you love sudoku but always wished a single solved board led somewhere — this is your climb. Read the grid. Reach the summit.
Quietblade
This is a calm, offline-first idle RPG where your character automatically explores and collects resources. Return to manage your character's health, equip new weapons, and make permanent upgrades to progress through challenging areas.
- Automatic offline exploration
- Resource collection and management
- Weapon finding and improvement
- Permanent character training
- Home-screen widgets
- Manual boss challenges
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Quietblade is a calm, offline-first idle RPG built for short, satisfying check-ins. Rook keeps exploring while the app is closed. Return to see each encounter, collect gold and weapons, recover at camp, time a ration boost, and choose permanent upgrades. • Automatic offline exploration • Health, rest, potions, and six-hour food boosts • Weapons to find, equip, improve, and salvage • Permanent attack and vitality training • Small and medium home-screen widgets • Optional iCloud save mirror • Dark mode and Liquid Glass design • Area routes and manual boss challenges • No player account • Consent-gated ads with monthly and lifetime ad-free choices Difficulty rises by area. Prepare with equipment, training, food, or rest, then choose when to challenge each boss. Ordinary victories restore a little health, and an ordinary defeat begins recovery automatically. Game works without any payment. Optional supplies, voluntary reward videos, and monthly or lifetime ad-free access support continued development. Advertising is consent-gated and follows iOS tracking choices. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
SudokuSpire and Quietblade are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. SudokuSpire sells 1 one-off in-app purchase and Quietblade sells 5 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | SudokuSpire | Quietblade |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.8 (4 ratings) — better |
| Positive reviews | — | 66.7% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | — | Every 3 weeks |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Christian Pedersen | Marios Pentelas |
In-app purchases
SudokuSpire
- Sudoku Spire Lifetime$4.99
Quietblade
- Monthly Ad-Free$1.991 Month
- Full Heal$0.99
- Field Supplies$1.99
- Lifetime Ad-Free$2.99
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- Lifetime Ad-Free$8.99









