MediumMobile AppLocalClear niche and buyerA Mac or phone that can run the model locallyPayments via RevenueCat
Verified

Private On-Device AI Expense Tracker

Digits is the smartest, most private expense tracker you'll ever use. With on-device AI, every feature works without sending your data to the cloud.

In plain English

Digits is an expense tracker app that keeps people's money data private. Its AI features run on the phone itself, so nothing is sent to an outside server. Users pay a subscription for the full app. TrustMRR shows about $77 in verified revenue over the last 30 days. The phone does the smart sorting, while the owner builds and markets the app.

Automation90%
Startup cost~$99
Time to first $Not disclosed
Monthly range*$30 MRR

~$30 MRR; $77 verified revenue last 30 days (TrustMRR/RevenueCat, Oct 29, 2026)

DifficultyMedium
SourceTrustMRR - Digits ↗

Operator: Abir

Verified

Revenue independently checked: documents reviewed by a publication, or a public dashboard.

Apple Developer $99/yr; other costs not disclosed.

The tool stack

Prices are the vendors' published list prices as researched in Oct 2026 and change often — always check the vendor's pricing page.

Step-by-step setup

  1. Solve one everyday job with a model that runs on the phone itself.
  2. Keep it private and offline: no upload, no per-use model bill.
  3. Free tier with a subscription or one-time unlock.
  4. Grow through App Store search and short demos.

What's automated vs. the human 10%

The machine does

  • Core AI generation/analysis
  • Billing and onboarding

You still do

  • Product quality and support
  • Distribution and marketing
  • Compliance and edge cases

Overview

Digits is the smartest, most private expense tracker you’ll ever use. With on-device AI, every feature works without sending your data to the cloud.

Operator: Abir. Category on TrustMRR: Fintech. Website: https://apps.apple.com/qa/app/expense-tracker-digits-ai/id6758142981

Estimated split: about 90% of the work automated, 10% human.

Realistic income

TrustMRR (checked Oct 29, 2026) shows about $30 MRR and $77 in RevenueCat-verified revenue over the last 30 days, $310 verified over its tracked history. This is one operator’s result, often after months or years of work, and doesn’t predict yours. Check the live listing — numbers change.

Risks

  • Apple/Google can ship the same feature built in.
  • On-device models are limited by phone hardware.
  • Startup cost and time to first dollar are not disclosed.

*Income figures are illustrative ranges based on public pricing and typical outcomes reported by practitioners, not guarantees. Most new online businesses earn little or nothing at first. Not financial, legal or tax advice.

THE DAILY 6

The 6 best AI money stacks, in your inbox every morning.

Each pick comes with its tools and first steps, so you can start one in minutes.

Unsubscribe anytime.

Featured in: AI Business Ideas for Introverts: Eight Documented Stacks · AI Finance, Trading and Budgeting Businesses (35 Verified Examples)

Related stacks

Browse more: Automated AI businesses · Verified revenue AI businesses · Local AI business ideas · AI mobile app business ideas