Comparison

API Usage vs Pi Dev Mobile

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

API Usage

Features
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Understand your AI and cloud costs without jumping between provider dashboards. API Usage brings OpenAI, Anthropic, and Vercel billing data into one clear, customisable view. Connect multiple organisations, choose the metrics and time ranges that matter to you, and keep important totals visible on your Home Screen. BUILD YOUR DASHBOARD - Track daily spend across configurable time ranges - Break down costs by project, service, API key, workspace, or model - Choose list, bar, line, area, or donut chart styles - Create compact or detailed tiles for each organisation CHECK COSTS FROM YOUR HOME SCREEN - Turn any dashboard tile into a widget - Choose the organisation and metric for each widget - Use small, medium, or large widget layouts - Keep snapshots updated in the background when iOS allows MADE FOR MULTIPLE PROVIDERS - Connect more than one organisation per provider - View OpenAI, Anthropic, and Vercel independently - Add, edit, or remove organisations at any time YOUR CREDENTIALS STAY ON YOUR DEVICE Credentials are stored in the iOS Keychain. API Usage communicates directly with the provider you connect and does not send your credentials or billing data to a Barolo AI server. API Usage is an independent product and is not affiliated with, endorsed by, or sponsored by OpenAI, Anthropic, or Vercel.

About

Pi Dev Mobile

Features
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Pi app companion for pi.dev. This connects to pi server you can run using npx pi-rpc-server

Screenshots

API Usage4 screens
Pi Dev Mobile3 screens

Verdict

The call

API Usage and Pi Dev Mobile are too close to call on the numbers: across 5 compared parameters โ€” price, ads, in-app purchases and device support among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
API Usage versus Pi Dev Mobile: the parameters behind the verdict, then further details
ParameterAPI UsagePi Dev Mobile
PriceFreeFree
Update frequencyโ€”Every 2 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad โ€” better
Requires iOS26.0 โ€” better26.1
Further details โ€” not scored
Size5 MB11 MB
Age rating4+4+
DeveloperBarolo AIOm More

In-app purchases

None

API Usage

No in-app purchases

None

Pi Dev Mobile

No in-app purchases

Questions

Is API Usage free?
API Usage is free to download, with no in-app purchases.
Is Pi Dev Mobile free?
Pi Dev Mobile is free to download, with no in-app purchases.
Do API Usage or Pi Dev Mobile have ads?
Neither API Usage nor Pi Dev Mobile shows ads.

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