NumFlow vs Circuit
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
NumFlow
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NumFlow is a relaxing number puzzle game designed to challenge your logic while keeping the experience simple and satisfying. Swap numbers, place them in the correct order, and complete each unique puzzle. Features: • 1,000 handcrafted-style levels • Unique shapes and puzzle layouts • Relaxing animations and sounds • Helpful hints when you need them • Light and dark themes • Multiple language support • Smooth zoom and navigation for larger puzzles Start simple and progress through increasingly challenging number puzzles. Can you complete the flow?`
Circuit
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Close the loop. Clear the board. The glowing neon wire puzzle for brain-teaser fans! You won't be lost in the ads too! CIRCUIT: LOOP PUZZLE is a relaxing yet challenging logic puzzle about electricity. Drag wire pieces onto an 8×8 board, close a circuit into a loop and watch it light up, charge and blast away. Easy to learn, hard to master and beautiful to play: a block puzzle with a spark. HOW TO PLAY • Place wire pieces on the board. • Close a circuit to make a loop: it discharges and clears itself and the tiles around it. • Chain loops back to back for combos and huge scores. • Plan ahead. If the board fills up, the power goes out! 4 WAYS TO PLAY • QUICK PLAY: an endless puzzle with Easy, Normal and Hard difficulty. Beat your own best score. • JOURNEY: 200 handcrafted puzzle levels in 20 sectors with locks, ice and Power Nodes. Collect up to 3 stars on every level. Finish the first 100 levels to unlock a second journey. • DAILY CIRCUIT: a fresh daily challenge, the same for every player. Keep your streak burning. • DUEL: challenge a friend in a 3-minute LIVE DUEL, send locks onto your rival's board, or race for the higher score in a score race. Invite friends with a store link and a 6-letter code, then play a rematch. CHAIN CURRENT AND STORM NIGHT • Chain Current: when a loop goes off, electricity jumps to open circuits nearby. Close a charged circuit in time to multiply your points. Plan your dominoes! • Storm Night: lightning is coming. A cell is marked and the bolt strikes a few moves later. Close a loop right beside it to catch the lightning and trigger a SUPER BLAST. THE JOURNEY: 30 SECTORS, 300 LEVELS Every sector brings a new idea. Break locks, crack frozen circuits, power up Power Nodes, ride the Chain Current and survive Storm Nights. Levels go from gentle warm-ups to fiendish brain teasers, and every level can be mastered with 3 stars. Sectors like Neon Dawn, Storm Front, Copper Maze and Beyond the Loop take you from beginner to circuit master. DUEL: PLAY WITH FRIENDS Same pieces, same board, who wins? Create a duel, share the invite and the 6-letter code, and see who builds the better circuit. Score races can be played any time, while LIVE DUELS run for 3 minutes at the same time with locks you can drop on your rival's board. Ask for a rematch as often as you like. EVERY DAY A NEW REASON TO PLAY Daily Circuit challenges, a growing collection of circuit colours, board styles and effects, and a streak to protect. The daily reminder is optional and can be turned off in Settings. QUICK ANSWERS • Is it free? Yes, free to play. One small optional purchase removes ads. • Do I need internet? No, only for duels. • Who is it for? Anyone who likes puzzles: calm, colourful brain games for all ages, with no violence. WHY YOU WILL LOVE IT • Satisfying neon visuals, glowing wires and electric blasts • Pure puzzle skill: planning and clever combos win the game • Great brain training for logic, spatial thinking and strategy • Short sessions or long runs: perfect for a quick break • Works offline, so you can play anywhere without Wi-Fi (duels need an internet connection) • Unlock circuit colours, board styles and effects just by playing; hold any option to preview it • Fair and friendly: no ads while you play (a small banner on the result screen and optional reward videos), and one small purchase removes ads for good • Available in 11 languages: English, Türkçe, Deutsch, Italiano, Français, Русский, Nederlands, Español, Português (Brasil), 日本語 and 한국어. Perfect for fans of block puzzles, logic puzzles, connect-the-wires and pipe puzzles, brain games and relaxing offline games. Download CIRCUIT: LOOP PUZZLE and close your first loop today! Made with care by Fré4 Studios. Questions or ideas? Write to fre4dev@gmail.com
Screenshots
Verdict
NumFlow and Circuit are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. NumFlow sells 4 one-off in-app purchases and Circuit sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
NumFlow ships an update every 4 days, Circuit every 5 days. The most recent releases landed on October 9, 2026 and October 29, 2026 respectively.
| Parameter | NumFlow | Circuit |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days — better | Every 5 days |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 101 MB |
| Age rating | 4+ | 4+ |
| Developer | Mustafa Ofluoglu | Fatih Cankaya |
In-app purchases
NumFlow
- 50 Hints$4.99
- Remove Ads$7.99
- 100 Hints$8.99
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- 300 Hints$14.99
Circuit
- Remove Ads$3.99









