Round Trip Latency Meter vs AxeModes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Round Trip Latency Meter
This app measures the real-world round trip latency of an iOS audio system. It plays test tones and records their return to calculate latency, requiring a loopback cable connection.
- Measures real-world round trip audio latency
- Plays test tones
- Records returning tones
- Requires loopback cable connection
- Tests iOS audio systems
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>>> Check out the demo videos at onyx3.com/LatencyMeter LatencyMeter app measures the real-world Round Trip Latency (RTL) of a given iOS audio system*. It functions by playing short test tones while simultaneously recording (listening for) the tones to return back to the input. This technique requires patching a loopback cable between audio system’s input and output. (* iOS audio system here refers to the combination of an iPhone/iPad paired with particular external audio interface)
AxeModes
This app helps guitarists learn various musical modes and scales from any root note. It features a dynamic fretboard, scale degree visualization, and audio playback for each note, along with chord accompaniment.
- Learn major, minor, and other scale modes
- Dynamic fretboard display
- Color-code and show/hide scale degrees
- Hear individual note sounds
- Play chord accompaniment
- Context-sensitive help
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Learn all the associated Modes of the Major, Melodic Minor, Harmonic Minor, Harmonic Major, Double Harmonic Major, Hexatonic, Pentatonic, and Diminished Scales. Starting from any Root Note. (Hundreds and hundreds of combinations!) Dynamically generated Fretboard. Show between 2 and 22 Frets at a time. Color code any Scale Degree(s). Show or hide any Scale Degree(s). Click on any Note to hear what it sounds like. Play Chord accompaniment for any Scale/Mode/Root combination. Context sensitive help available on every screen.
Screenshots
Verdict
The clearest difference is rating: AxeModes at 5.0 against Round Trip Latency Meter's 1.0. AxeModes also leads on update cadence (every 4 days vs every 31 months) and price ($4.99 vs $9.99). On ratings volume, ads, in-app purchases and monetization model 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
Round Trip Latency Meter costs $9.99 and AxeModes $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
AxeModes holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Round Trip Latency Meter ships an update every 31 months, AxeModes every 4 days. The most recent releases landed on October 14, 2026 and October 4, 2026 respectively.
| Parameter | Round Trip Latency Meter | AxeModes |
|---|---|---|
| Price | $9.99 | $4.99 — better |
| Rating | 1.0 (1 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 31 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.0 | 16.2 — better |
| Further details — not scored | ||
| Size | 4 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | ONYX Apps | Joseph Svantner |
Customer experience
Round Trip Latency Meter
AxeModes
In-app purchases
Round Trip Latency Meter
No in-app purchases
AxeModes
No in-app purchases
Questions
Is Round Trip Latency Meter free?
Is AxeModes free?
Which has better reviews, Round Trip Latency Meter or AxeModes?
Do Round Trip Latency Meter or AxeModes have ads?
Which is updated more often, Round Trip Latency Meter or AxeModes?
Other comparisons
