Sound Meter vs PostCode
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sound Meter
This utility app measures ambient noise levels in decibels. It provides a reference table to help users understand safe listening levels and protects their hearing. The app also stores historical measurements for later review.
- Measures sound level in decibels
- Decibel level reference table
- Hearing protection guidance
- Stores measurement history
- Easy to use interface
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Sound Meter measures the noise and sound level in decibel. Easy to use. - Decibel level table for reference, helps protect your ears from pain - Store history for any consideration later.
PostCode
This utility app helps video editors perform complex timecode calculations and frame rate conversions. It supports adding, subtracting, multiplying, and dividing timecode, calculating total run times, and instantly converting between various frame rates. Designed for professional post-production workflows.
- Timecode arithmetic (add, subtract, multiply, divide)
- Total run time calculation from In/Out points
- Instant frame rate conversion
- Toggle between timecode and frame count
- Support for all standard and custom frame rates
- Export calculations as CSV or TXT
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PostCode is the timecode calculator & frame rate converter for video editors and post-production teams. Made by an editor, for editors. Whether you're calculating durations, spotting VFX shots, converting frame rates for delivery, or totalling segments for a programme run time — PostCode handles the maths so you can handle the edit. • Calculator Add, subtract, multiply, and divide timecode. Your history is kept on the paper tape. Tap any line on the tape to drop its value back into the input. Touch and hold any line to copy or delete it. Supports negative values for pre-roll calculations. • Total Run Time Enter the In and Out points for multiple segments to calculate the total run time — like a simplified EDL. Reorder segments with drag-and-drop. Give segments an optional name. Set a target to see how far over or under you are. • Frame Rate Converter Convert timecode between any two frame rates instantly. Supports Drop Frame and Non-drop Frame, plus NTSC pull down. • TC/FR Toggle between timecode or frame count, anywhere in the app — perfect for VFX and animation workflows. • Frame Rates Supports all SMPTE standard frame rates — 23.976, 24, 25, 29.97 Non-drop Frame, 29.97 Drop Frame, 30, 50, 59.94 Non-drop Frame, 59.94 Drop Frame, 60 — as well as custom frame rates. • Undo Each mode keeps its own undo history. Shake your iPhone or press ⌘-Z to undo any destructive action. • Copy and Paste Touch and hold any value to copy and paste it as timecode or as frames. PostCode automatically validates and formats the timecode for you. • Built for Pros Hardware keyboard support on iPad and Mac. Dark mode optimised for edit suites and control rooms. Export calculations as TXT or CSV. If PostCode has helped you, an App Store rating and review would be appreciated. Happy editing!
Screenshots
Verdict
The clearest difference is review sentiment: PostCode at 100% against Sound Meter's 40%. PostCode also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 1). Sound Meter's advantage is price (Free vs $2.99) and ratings volume (16 vs 1). On update cadence, ads 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
Sound Meter is free to download; PostCode costs $2.99 up front. Sound Meter sells 1 one-off in-app purchase. PostCode asks for nothing beyond the download.
PostCode holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Sound Meter has 16 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 40% of Sound Meter's written reviews are positive against 100% of PostCode's.
Sound Meter ships an update fortnightly, PostCode every 3 weeks. The most recent releases landed on September 24, 2026 and September 7, 2026 respectively.
| Parameter | Sound Meter | PostCode |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.4 (16 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 40.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 16 — better | 1 |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 57 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Hiep Pham | Martin McLean |
Customer experience
Sound Meter
PostCode
In-app purchases
Sound Meter
- Remove ADs$4.99
PostCode
No in-app purchases









