1Chart vs EPOS Connect
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
1Chart
Create, share, and print professional music charts using the Nashville Number System or letter chords. Offers flexibility in key changes, chord notation, and rhythmic details for efficient music arrangement.
- Nashville Number System support
- Letter chord flexibility
- Key change updates
- Rhythmic notation and dynamics
- Arrangement tools
- PDF and editable file sharing
- Performance mode
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FOR PROFESSIONAL-LOOKING MUSIC CHARTS, 1CHART IS ALL YOU NEED Create, share and print easy-to-read music charts with the only app that gives you all the power of the Nashville Number System, while also offering the flexibility of switching to letter-format chords whenever you like. At the core, 1Chart is built around the Number System and all its shorthand flexibility for charting music. But why stop there? 1Chart is also built for those who prefer to read letter chords rather than number chords. “Am F C” or “6m 4 1”? The choice is yours. Now anyone who prefers letter chords can enjoy the Number System's concise charting advantages — without needing to read numbers. Have a chart using letter chords and want to change keys? No problem. Select a new key, and your letter-format chart is updated to reflect the change. CHART FASTER AND SMARTER - Clear typography makes your charts easier to read - Copy/paste measures or sections for faster charting - View charts in your choice of three font sizes - Share charts and notebooks as PDFs or editable 1Chart files QUICKLY TYPE CHORDS - Support for chord inversions, as well as common and not-so-common chord qualities ("alt" chord, anyone?) - For Numbers fans: Accidentals before or after chord numbers? 1Chart accommodates both preferences. SUPPORT FOR RHYTHMIC NOTATION & DYNAMICS - Add as much rhythm/dynamic detail as you need. 1Chart includes characters for pushes, diamonds, the "mute triangle," etc., as well as the traditional notes and rests used in the Number System. - Use traditional notation or "hash marks" to specify beat distribution in split measures - Mark an area with a crescendo, decrescendo, ritardando or accelerando ADVANCED RHYTHMIC NOTATION - Beam notes above a single chord (e.g. to show an 8th-note feel) or across multiple chords (to show groove or beat distribution) - Tie notes and diamonds TOOLS TO BUILD YOUR ARRANGEMENT - Use repeat symbols, codas, segnos, etc. - Select an area to specify 1st/2nd/etc. endings - Separate sections with a single- or double-underline, or specify no formatting FINE-TUNE YOUR FORMAT - Option to align measures horizontally (4–8 measures per line) - Style inversions with a horizontal or diagonal dividing line - Choose "Minimize Horizontal Spacing" to fit more content per line ORGANIZE AND SHARE YOUR CHARTS - Use Notebooks to gather your charts in easy-to-manage collections (to mirror a set list, for ex.) - Share charts and notebooks by email - Import from and export to cloud services such as iCloud Drive, Dropbox, etc. Imported files must be in 1Chart (.1ch) format. PERFORMANCE MODE - “Lock” your charts to prevent unintended edits - Swipe left/right to access next/previous chart ONLINE SUPPORT & USER FORUM Visit 1chartapp.com for help and to join the user community. ABOUT THE NASHVILLE NUMBER SYSTEM Nashville Numbers is an ingenious shorthand system for charting music that identifies chords by number (relating to scale degree) rather than letter, so charts are key-independent. A Number chart is valid no matter what key you choose to play it in. Take a progression spelled with the chord letters, A, D, and E. In Numbers, these chords are written as “1, 4, 5,” matching their position in the A scale: A is first, D is fourth, and E is fifth. Because scale relationships don't change when you change keys, “1, 4, 5” works in any key. Change the key to G, and “1, 4, 5” indicates you’ll want to play G, C and D — the first, fourth, and fifth notes of the G major scale. Combine this flexibility with rhythmic and dynamic notation, and you’ve got a powerful format for creating concise roadmaps of songs for use when rehearsing or performing. 1Chart includes the option of showing chords in number or letter format, giving you the best of both worlds. You can easily toggle between number chords and letter chords at any time in any chart you create.
EPOS Connect
Enhance your EPOS headset with real-time updates and personalized settings. Achieve crystal-clear call quality and a tailored audio experience for optimal performance. This free application is compatible with a range of EPOS headset series.
- Real-time updates
- Customizable settings
- Personalized audio experience
- Crystal-clear call quality
- Optimal performance
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Elevate Your Audio Experience with EPOS Connect! Stay ahead with the latest features and optimal performance for your EPOS headset. EPOS Connect is a user-friendly app that provides real-time updates and allows you to customize settings for crystal-clear call quality and a personalized audio experience. COMPATIBILITY: ADAPT 200 Series, ADAPT 300 Series, ADAPT 400 Series, ADAPT 500 Series, ADAPT 600 Series, ADAPT E1 Series, IMPACT400 Series, IMPACT 500 Series, IMPACT 1000 Series, C20, C50 and MB 660 headsets.
Screenshots
Verdict
The clearest difference is review sentiment: 1Chart at 89% against EPOS Connect's 12%. 1Chart also leads on rating (4.3 vs 2.6) and iOS requirement (14.0 vs 16.0). EPOS Connect's advantage is price (Free vs $15.99) and ratings volume (114 vs 33). On update cadence, 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
EPOS Connect is free to download; 1Chart costs $15.99 up front. Neither carries in-app purchases, so what you see is what you pay.
1Chart holds the better App Store score, 4.3 against 2.6. Both are backed by a comparable volume of ratings — 33 and 114 respectively. Written reviews point the same way: 89% of 1Chart's written reviews are positive against 12% of EPOS Connect's.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on August 11, 2026 and September 28, 2026 respectively.
| Parameter | 1Chart | EPOS Connect |
|---|---|---|
| Price | $15.99 | Free — better |
| Rating | 4.3 (33 ratings) — better | 2.6 (114 ratings) |
| Positive reviews | 89.4% of reviews — better | 12.4% of reviews |
| Number of ratings | 33 | 114 — better |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 44 MB | 109 MB |
| Age rating | 4+ | 4+ |
| Developer | RooKanga Digital LLC | EPOS GROUP AS |
Customer experience
1Chart
EPOS Connect
Bugs and requests
1Chart
Not enough reviews yet to summarise bugs or requests.
EPOS Connect
Reported bugs
5 issues- App unable to connect to paired headsets
- Settings not saving properly
- Firmware update process unreliable
- Compatibility issues with iOS and Windows
- Frequent disconnections and pairing problems
Requested features
5 requests- Add support for more headset models
- Improve app performance and stability
- Implement dark mode
- Add EQ and sound customization options
- Allow installation on multiple devices
In-app purchases
1Chart
No in-app purchases
EPOS Connect
No in-app purchases









