Aspect Ratio Pro vs Inventory Snap
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Aspect Ratio Pro
This app helps you quickly solve for an unknown value in a proportion. Simply input three known numbers, and it will calculate the fourth, making ratio and proportion calculations effortless.
- Rule of three calculations
- Instant fourth value calculation
- Ratio and proportion solver
- Intuitive input interface
- Supports iPhone and Mac
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Your new rule-of-three sidekick. Enter three values, and the app instantly finds the fourth. Perfect for calculating ratios and proportions when one value is missing. ⁂ Support If you need help or want to make a feature suggestion, I’d love hearing from you → https://appahead.studio/help/ Feedback Enjoying Aspect Ratio Pro? I’d love your support with a kind review on the App Store. About I’m Martin — designer, developer, and founder of App ahead. Since 2015, I’ve been creating ambitious apps for Apple devices, driven by a strong vision and thoughtful, forward-thinking design. Terms of Use: https://appahead.studio/terms Privacy Policy: https://appahead.studio/privacy
Inventory Snap
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Inventory Snap is a fast, offline barcode inventory tracker. Scan items, track stock levels and low-stock alerts, organize by location and category, and export clean CSV for Etsy, eBay, Shopify, Numbers and accounting — all on your phone, no account required. Free for up to 10 items; upgrade to Pro for unlimited items and full CSV export. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Inventory Snap at Free against Aspect Ratio Pro's $3.99. Inventory Snap also leads on update cadence (every 5 days vs every 3 weeks). On ads, in-app purchases, device support and iOS requirement 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
Inventory Snap is free to download; Aspect Ratio Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Aspect Ratio Pro ships an update every 3 weeks, Inventory Snap every 5 days. The most recent releases landed on October 15, 2026 and September 22, 2026 respectively.
| Parameter | Aspect Ratio Pro | Inventory Snap |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, Mac — better | iPhone |
| Requires iOS | 18.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 42 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | App ahead GmbH | Evgenii Sinitsyn |
In-app purchases
Aspect Ratio Pro
No in-app purchases
Inventory Snap
No in-app purchases
Questions
Is Aspect Ratio Pro free?
Is Inventory Snap free?
Do Aspect Ratio Pro or Inventory Snap have ads?
Which is updated more often, Aspect Ratio Pro or Inventory Snap?
Other comparisons
