Disk Graph vs Plan 9
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Disk Graph
Analyze your device's storage to identify large files and identify items not accessed recently. This utility helps you reclaim disk space by showing what's taking up the most room. Access directories directly through the Files app.
- Inspect disk usage
- Find large files
- Identify old files
- Reclaim disk space
- File access via Files app
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Inspect your disk and find the files that occupy the most space or that haven’t been modified in a long time. Only directories reachable in the Files app can be opened.
Plan 9
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Looking for a flexible way to estimate the relative complexity of your development goals? Scrum poker is a consensus-based technique for estimating, often used to estimate effort or relative complexity of tasks in software development. Team members produce estimates by choosing numbered cards, and then discuss the result. By having all group members choose without knowing the choices of the other members, possible bias in favour of the first number called is avoided. The set of numbers used may differ according to the circumstances. Plan 9 offers a range of story point sequences for everyone's estimation gaming needs. Choose your own font and colour to express your creativity. No ads, frills or company logos. Put the fun back into those functional planning meetings! Features - Choose from all fonts available on your device - Intuitive colour wheel - Select from various estimation ranges
Screenshots
Verdict
The clearest difference is price: Plan 9 at Free against Disk Graph's $5.99. Plan 9 also leads on iOS requirement (14.0 vs 17.0). Disk Graph's advantage is update cadence (every 3 months vs every 24 months). 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
Plan 9 is free to download; Disk Graph costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Disk Graph ships an update every 3 months, Plan 9 every 24 months. The most recent releases landed on October 22, 2026 and October 7, 2026 respectively.
| Parameter | Disk Graph | Plan 9 |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 4.2 (5 ratings) — better | — |
| Positive reviews | 74.5% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 3 months — better | Every 24 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPod |
| Requires iOS | 17.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Nicolas Kick | Paul Evenblij |
In-app purchases
Disk Graph
No in-app purchases
Plan 9
No in-app purchases
