Fill vs Panda Vault
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Fill
Uncover hidden pixel art by painting squares based on numerical clues. This logic puzzle game offers a mentally stimulating challenge with a unique fingertip cursor for precise control and a smart-fill option for rapid completion. Enjoy hours of artistic and deductive fun with manually created, high-quality puzzles.
- Reveal hidden pixel art
- Deductive logic puzzles
- Unique fingertip cursor
- Smart-fill cursor
- Weekly bonus puzzles
- Manually created puzzles
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Find which neighboring squares must be painted and create a beautiful picture! Each puzzle consists of a grid containing clues in various places. The object is to reveal a hidden picture by painting the squares around each clue so that the number of painted squares, including the square with the clue, matches the value of the clue. Fill-a-Pix are exciting logic puzzles that form whimsical pixel-art pictures when solved. Challenging, deductive and artistic, this original Conceptis puzzle offers the ultimate mix of logic, art and fun while providing solvers with many hours of mentally stimulating entertainment. The game features a unique fingertip cursor which enables playing large puzzle grids with ease and precision: to fill a square, move cursor to the desired location and tap anywhere on the screen. To fill multiple squares, press and hold fingertip until cursor fills the square and start dragging to neighboring squares. The game also features a powerful Smart-fill cursor for quick, single-tap filling of all remaining empty squares around a clue. To help see the puzzle progress, graphic previews in the puzzle list show the progress of all puzzles in a volume as they are being solved. A Gallery view option provides these previews in a larger format. For more fun, Fill-a-Pix contains no ads and includes a Weekly Bonus section providing an extra free puzzle each week. PUZZLE FEATURES • 125 free Fill-a-Pix puzzles • Extra bonus puzzle published free each week • Puzzle library continuously updates with new content • Manually created by artists, top quality puzzles • Unique solution for each puzzle • Grid sizes up to 65x100 • Multiple difficulty levels • Hours of intellectual challenge and fun • Sharpens logic and improves cognitive skills GAMING FEATURES • No ads • Zoom, reduce, move puzzle for easy viewing • Smart-fill cursor for faster playing • Show errors during gameplay • Unlimited check puzzle • Unlimited hints • Unlimited Undo and Redo • Auto-fill starting clues option • Exclusive fingertip cursor design for solving large puzzles • Graphic previews showing puzzles progress as they are being solved • Concurrently playing and saving multiple puzzles • Puzzle filtering, sorting and archiving options • Dark Mode support • Portrait and landscape screen support (iPad only) • Track puzzle solving times • Backup & restore puzzle progress to iCloud ABOUT Fill-a-Pix have also become popular under other names such as Mosaic, Mosaik, Fill-In, Nurie-Puzzle and Japanese Puzzle. Similar to Picross, Nonogram and Griddlers, the puzzles are solved and the pictures revealed using logic alone. All puzzles in this app are produced by Conceptis Ltd. - the leading supplier of logic puzzles to printed and electronic gaming media all over the world. On average, more than 20 million Conceptis puzzles are solved each day in newspapers, magazines, books and online as well as on smartphones and tablets across the world. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.conceptispuzzles.com/index.aspx?uri=info/doc/220
Panda Vault
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Master Bao has a problem: 1000 vaults, 1000 secret codes, and no memory of any of them. Luckily he kept the case files, and each one is solvable by pure logic. Panda Vault: Code Breaker is a deduction game. Every vault hides a secret code of 3, 4 or 5 digits, and no digit ever repeats. You get graded clues from Bao's file: • JADE PEG: that many digits are correct AND in the right position • GOLD PEG: that many digits belong to the code, but sit in the wrong slot • NOTHING: every digit in that row is out of the code. Cross them off. Combine the clues, eliminate what cannot be, and the code is what's left. Then punch it in and watch the bolts retract. WHY IT'S DIFFERENT • Every one of the 1000 levels is machine-verified to have EXACTLY ONE solution, you will never guess, and never get stuck on an unfair puzzle. • Every clue is necessary. Remove any single row and the puzzle stops being solvable, so nothing on screen is filler. • A smooth difficulty ramp: 3-digit Bronze Vaults teach the rules, 5-digit Diamond Vaults with minimal clues will take a pen and paper. Every 10th level is a breather. BUILT-IN DEDUCTION TOOLS • A notebook to mark each digit 0–9 as OUT, MAYBE or IN. • Thunder Scan, spends one charge to fill in every deduction the clues already prove, so you can spend your attention on the interesting part. • Your own attempts get graded too, so a wrong answer is still information. AGENT BAO A fully animated panda who breathes, blinks, tilts his head while you think, hops when you land digits, shakes his head when you don't, chomps bamboo when you spend a hint, and backflips when the vault swings open. PROGRESS • Daily streak: crack one vault a day to keep it alive. Miss a day and it restarts, helpers never break it. • Climb the ranks: Novice Cub → Lookout → Safe Cracker → Vault Specialist → Master Bao → Grandmaster. • Put the phone down mid-vault: the board, your attempts and your notes are exactly where you left them. HELPERS (optional, never required) • Golden Bamboo — reveals and locks one correct digit. • Thunder Scan — marks every digit the clues already prove in or out. • Master Key — opens the vault instantly. Earn them from rewarded video (a Master Key takes two), or buy a pack. Every puzzle is solvable without any of them. NO NONSENSE • Plays fully offline. No account, no login, no data collection. • No timers, no lives, no energy meters. Think as long as you like. • One optional reminder at 22:00, only on a day you haven't played. Turn it off in Settings and the app never notifies you again. • One-time Remove Ads purchase if you'd rather not see ads. Free to play. iPhone and iPad.
Screenshots
Verdict
The clearest difference is update cadence: Panda Vault at every 4 days against Fill's every 3 months. 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. Fill sells 10 one-off in-app purchases and Panda Vault sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Fill ships an update every 3 months, Panda Vault every 4 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.
| Parameter | Fill | Panda Vault |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1.2K ratings) — better | — |
| Positive reviews | 91.7% of reviews | — |
| Number of ratings | 1.2K — better | — |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 7 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Conceptis Ltd. | Ahmed Ghazy |
Bugs and requests
Fill
Reported bugs
3 issues- Puzzle progress not saving properly
- Incompatibility issues with newer iOS versions
- Freezing or crashing when using certain features
Requested features
6 requests- Add a hint feature to help with difficult puzzles
- Introduce more free puzzle packs or a daily free puzzle
- Allow saving/restoring of purchased puzzle packs
- Add an option to highlight empty/unmarked areas
- Provide a 'test' mode to try out moves without committing
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- Position controls/buttons for easier one-handed use
Panda Vault
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Fill
- Basic Logic - Variety 1$2.99
- Advanced Logic - Variety 1$2.99
- Basic Logic - Variety 2$2.99
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- Basic Logic - Variety 3$2.99
- Advanced Logic - Variety Large$3.99
- Basic Logic - Variety Large$3.99
- Basic Logic - Variety Large 2$3.99
- Basic Logic - Extra Large 1$4.99
- Basic Logic - Extra Large 2$4.99
- Basic Logic - Famous Paintings$4.99
Panda Vault
- Panda Cub Pack$0.99
- Remove Ads$1.99
- Agent Bao Pack$2.99
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- Grandmaster Vault$4.99
Questions
Is Fill free?
Is Panda Vault free?
Do Fill or Panda Vault have ads?
Which is updated more often, Fill or Panda Vault?
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