Comparison

Flux vs Cypher Box

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Flux

Features
Read full description

Flux Fi lets you securely manage, swap, and stake tokens on Sui, all from your own wallet, not an exchange. You always stay in control of your assets and keys. Features: • Enterprise grade security • Social or seed phrase login • Explore apps across the Sui ecosystem Take control of your digital assets with Flux Fi.

About

Cypher Box

This open-source Bitcoin wallet offers a progressive framework for users to manage their cryptocurrency, balancing security, fees, and user experience. It guides users through four difficulty levels, from beginner-friendly Lightning Network transactions to advanced self-custodial hot and cold storage vaults.

Highlights
  • Progressive self-custody levels
  • Lightning Network integration
  • Hot and Cold storage vaults
  • 12-word backup for hot vault
  • Hardware wallet connectivity for cold vault
  • Interactive balance visualization
Features
Read full description

Open-source Bitcoin wallet appropriate for beginners who want to gradually reach advanced self-custody. It features a progressive framework that strikes a balance between; security, fees, and UX. Your progression as a user takes four difficulty levels, reflecting your understanding of Bitcoin and the amount of balance you want to secure. The app can be ultra newbie-friendly since it comes with Lightning Network service providers, but as your balance grows, you can transfer your Bitcoin into a more secure environment by creating hot or cold storage vaults. Note: We do NOT custody your funds. Level 1 - absolute beginner: Lightning Account (e.g Strike) - Instant Lightning Network payments with low fees via a custodial or exchange service provider. - Receive small or medium amounts of bitcoin - Threshold-based withdrawals to minimize withdrawal fees and security/counterparty risk. - Seamless withdrawals to self-custodial vaults. (if created) Level 2 - newbie: Lightning Vault (Bark) - Instant noncustodial Lightning payments with low fees. - Receive small or medium amounts of bitcoin - Seamless swap to/from to a custodian(s) or exchange(s). - Lightning capsule refresh reminder to keep balance backed up and under the user’s full control. - Withdraw to hot or cold storage (if created) Level 3 - advanced: Hot or Cold Storage Vault - Generate a 12-word backup - Connect hardware wallet - Receive large to medium amounts of bitcoin (onchain) - Withdraw from Lightning wallets to cold or hot storage - Lightning wallet Top-ups for quick liquidation - Move coins between vaults - Batch, label, and manage coins (coincontrol) Level 4 - power user: Multi-Custodian multi-vault - Diversify funds across multiple Lightning custodians and your self-custodial vaults. - Swap between custodians and non-custodial Bark vault - Manage custodial thresholds to balance risks. Other features: - Interactive bar display to visualize balance in relation to your thresholds - Graphical representation of 'Capsules' or coins (UTXOs) that reflect their size (soon) - Total balance across all checking accounts and vaults Technical specs: - LNURL - SegWit-first - Bip39 - Watch-only vault - PSBT - Private keys never leave your device

Screenshots

Flux3 screens
Cypher Box4 screens

Verdict

The call

Flux and Cypher Box 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.

ScorecardNo meaningful differences
Flux versus Cypher Box: the parameters behind the verdict, then further details
ParameterFluxCypher Box
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.1
Further details — not scored
Size83 MB60 MB
Age rating4+4+
DeveloperCyphalab IncCypher Box LLC

In-app purchases

None

Flux

No in-app purchases

None

Cypher Box

No in-app purchases

Questions

Is Flux free?
Flux is free to download, with no in-app purchases.
Is Cypher Box free?
Cypher Box is free to download, with no in-app purchases.
Do Flux or Cypher Box have ads?
Neither Flux nor Cypher Box shows ads.
Which is updated more often, Flux or Cypher Box?
Flux ships an update every 3 weeks, and Cypher Box every 3 weeks. Most recently, Flux was updated on October 25, 2026 and Cypher Box on October 12, 2026.

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