Comparison

Resistor Tools Pro vs Hush Secret Text

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

Head to head
About

Resistor Tools Pro

This utility app offers a suite of tools for calculating and finding resistor combinations. It's designed for electronics enthusiasts and professionals needing to determine series, parallel, and voltage divider configurations. Save and share your calculations easily.

Highlights
  • Calculate series/parallel resistance
  • Find resistor combinations for desired resistance
  • Voltage divider ratio and value calculation
  • Inverting amplifier gain calculation
  • Save combinations to CSV
  • Share via AirDrop
  • Upload CSV to iCloud Drive
Read full description

This app is a collection of resistor calculators. It is suitable for hobbyist or electronic engineer. * Calculate resistance of 2 resistors in series or parallel * Find out combinations of 2 resistors in series/parallel making a desired resistance * Calculate ratio of R1/R2 and voltage divider * Find out resistor values of making voltage divider ratio * Find out resistor values of making inverting amplifier gain * Save combination values in CSV file * Share document via AirDrop * Upload CSV file to iCloud Drive (For iOS8 or later)

About

Hush Secret Text

Features
Read full description

Encrypt text and files on your device using a shared secret. Hush requires no account and provides no message server. Share the encrypted result through an app or destination you choose. NEW IN 4.0 Search your Message Ledger by label or stored message text and filter encrypted or plaintext entries. Export an encrypted ledger backup through Files, then import it with a preview and confirmation before replacing your saved messages. The backup uses your chosen secret; Hush cannot recover a forgotten secret. Saved messages and templates are no longer silently removed when their libraries reach capacity. Unreadable originals are preserved instead of overwritten. Template recovery can preserve the original and start a new library, with an unencrypted recovery-data export for troubleshooting. TEXT AND FILE TOOLS Encrypt and decrypt secret text, save reusable plaintext templates, manage named device-only Keychain secrets, create QR codes for supported message sizes, verify shared secrets, and use dual-message packages. Optional app locking uses device authentication. Clipboard copies can expire after your selected delay and stay local to this device. Sealed Bundles protects several files in one authenticated encrypted package. Open Sealed Bundles, select files and enter a strong secret. Reopen and authenticate the whole bundle before preparing recovered files for sharing. Bundles are not ZIP archives. Single-file encryption and decryption are also available. WHAT TO KNOW Decrypted ledger entries and templates are stored locally as plaintext. Ledger backups encrypt the exported file, not the local library. Backups contain ledger entries only, not Keychain secrets, templates or file bundles. Restore replaces the entire ledger and preserves the previous local value. Limits: 50 ledger entries, 100 KB per entry and 1 MB per backup; 30 templates. Single-file and photo imports support up to 100 MB. Bundles support 1–12 files totaling up to 20 MB of original data. New HUSH2 text and HUSHF2 file packages use AES-256-GCM and PBKDF2-HMAC-SHA256 with 600,000 iterations; older supported formats remain readable. Recipient expiry and burn-after-reading instructions rely on compatible Hush behavior. They cannot prevent screenshots, copied text, exported packages or device-clock changes. Clipboard expiration cannot remove text already pasted elsewhere. Recovered file exports are ordinary independent files; clearing a workspace is not guaranteed secure erasure and does not remove shared copies. iPhone and iPad. No subscription or account required.

Screenshots

Resistor Tools Pro4 screens
Hush Secret Text4 screens

Verdict

The call

The clearest difference is update cadence: Hush Secret Text at every 2 weeks against Resistor Tools Pro's every 2 months. Resistor Tools Pro's advantage is price ($0.99 vs $2.99) and iOS requirement (12.0 vs 17.0). On 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

CostPrice · In-app purchases · Ads · Monetization

Resistor Tools Pro costs $0.99 and Hush Secret Text $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Resistor Tools Pro ships an update every 2 months, Hush Secret Text every 2 weeks. The most recent releases landed on November 4, 2026 and November 7, 2026 respectively.

Scorecard3 real differences · 6 level
Resistor Tools Pro versus Hush Secret Text: the parameters behind the verdict, then further details
ParameterResistor Tools ProHush Secret Text
Price$0.99 — better$2.99
Rating4.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size4 MB2 MB
Age rating4+4+
DeveloperSiu Yuen HoRobert Corbin

In-app purchases

None

Resistor Tools Pro

No in-app purchases

None

Hush Secret Text

No in-app purchases

Questions

Is Resistor Tools Pro free?
Resistor Tools Pro costs $0.99, with no in-app purchases.
Is Hush Secret Text free?
Hush Secret Text costs $2.99, with no in-app purchases.
Do Resistor Tools Pro or Hush Secret Text have ads?
Neither Resistor Tools Pro nor Hush Secret Text shows ads.
Which is updated more often, Resistor Tools Pro or Hush Secret Text?
Resistor Tools Pro ships an update every 2 months, and Hush Secret Text every 2 weeks. Most recently, Resistor Tools Pro was updated on November 4, 2026 and Hush Secret Text on November 7, 2026.

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