Comparison

IOU vs Ngumba

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

Head to head
About

IOU

Create professional agreements and manage payments effortlessly. Draft documents using AI, e-sign, and track invoices and due dates in one organized platform. Secure sign-in ensures your data is protected.

Highlights
  • AI-powered agreement drafting
  • E-signature functionality
  • Payment and invoice management
  • Due date reminders
  • Dispute tracking
  • Secure sign-in
Features
Read full description

IOU helps you create clear, professional agreements and keep payments on schedule, without the back‑and‑forth. Draft with AI in chat or voice using ready‑made templates, then e‑sign, export to PDF, and manage invoices, due dates, and reminders in one place. Powerful search, dispute tracking, and a built‑in assistant keep everything organized, with secure sign‑in via Apple or Google. Terms of Use: https://ioumarker.com/legal#terms Privacy Policy: https://ioumarker.com/legal#privacy Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Ngumba

Features
Read full description

Ngumba does the things people go to a business centre for. Scan a page with your phone and get a clean, straight document — not a photograph of paper. Make it small enough for a portal that keeps rejecting it. Write an invoice and send it in under a minute. Sign a contract without printing it. Put several documents into one PDF for an application. Everything you make is kept, named, and searchable by what the pages actually said — so the second time somebody asks for your documents, it costs nothing. There is no account. There is no sign-up, no email to confirm, no subscription, and no free trial that ends. Open it and it works. Your documents stay on your phone. Not "encrypted in the cloud" — there are no servers. When you send something it goes wherever you sent it, the same way a photograph does. Turn on flight mode and everything except sending still works. WHAT IT DOES • Scan — a page, a receipt, a passport. Straightened, cleaned, readable. • Fix — make a document small enough to send. Combine several into one. Take pages out. • Invoice — quotes, invoices and receipts, with your logo, your terms and your tax. One document that renames itself as the work moves. • Owed — who has not paid you, and what is late. • Sign — draw your signature once, then put it on anything. • Keep — everything filed by itself, searchable, and warned about before it expires. Free for the everyday things, because the tools already exist and are simply not in most people's hands.

Screenshots

IOU4 screens
Ngumba4 screens

Verdict

The call

The clearest difference is in-app purchases: Ngumba at none against IOU's 1. Ngumba also leads on ads (none vs shown) and device support (3 vs 1). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. IOU sells 1 in-app purchase, starting at $9.99 per month. Ngumba asks for nothing beyond the download.

Scorecard4 real differences · 6 level
IOU versus Ngumba: the parameters behind the verdict, then further details
ParameterIOUNgumba
PriceFreeFree
Rating5.0 (8 ratings) — better—
Positive reviews83.3% of reviews—
Number of ratings8 — better—
Update frequencyEvery 5 days—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationAd-supported—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.415.0 — better
Further details — not scored
Size149 MB27 MB
Age rating17+4+
DeveloperIOU MarkerPreventNow

In-app purchases

1 purchases

IOU

Subscriptions1
  • IOU Pro$9.991 Month
None

Ngumba

No in-app purchases

Questions

Is IOU free?
IOU is free to download, with in-app purchases available.
Is Ngumba free?
Ngumba is free to download, with no in-app purchases.
Do IOU or Ngumba have ads?
IOU shows ads; Ngumba does not.

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