Currency converter for iPhone

Any price, in your currency. In seconds.

Open, type an amount, read the result — or point the camera at the price. A fast currency converter that keeps working offline, with no ads and no account.

Free · No ads · For iPhone

Numo showing 100 US dollars in euros, pounds, bitcoin and Swiss francs.
Numo, the app’s mascot, laughing.

Three seconds. Start to finish.

  1. Step 1: Open

    Your currencies are already there — the pair you use most, plus up to three more.

  2. Step 2: Type

    Enter the price in any row, work it out first — 120 + 15 shipping — or point the camera at the tag.

  3. Step 3: Read

    Every currency updates as you type. No “convert” button, no waiting.

Built on trust. Not on tracking.

No account to create, no ads to sit through, and rates from sources you can name.

  • Central-bank rates

    Reference rates from Frankfurter, which publishes central-bank data, with ExchangeRate-API as a backup.

  • No ads, ever

    Not in Free, not in Pro. Nothing to dismiss, nothing to pay to remove.

  • No account

    Nothing to sign up for. Open the app and convert.

  • Works offline

    Saved rates keep working on a plane, abroad or underground.

Convert anything. Instantly.

Type a price, do the math, scan a tag or add a coin — all on one screen.

Do the math in the amount

Add up a bill, split it, or add shipping before you convert. The keypad works like the calculator you already know, and every currency follows as you type — up to five at once.

Scan the price

Point the camera at a price tag, a menu or a receipt and Numo converts it. Text is read on your iPhone; images are never uploaded.

20 cryptocurrencies

BTC, ETH, USDT and more, right next to your currencies. Prices by CoinMarketCap.

A list for every trip Pro

Keep your everyday currencies as the default and add lists like Home, Travel or Work, each with its own currencies and icon. Swipe the title to switch.

Know the rate. Catch the moment.

Alerts, charts and rates of your own — so you change money at the right time and count it the way you got it.

Price alerts

Get a notification when a rate crosses the level you choose — for a currency or a coin. One active alert on Free, up to 20 with Numo Pro.

Rate history

See how a currency moved over 7 or 30 days, or 3 months and a year with Numo Pro. The Rates list shows every weekly trend.

The rate you actually got

Exchanged at a kiosk? Enter the rate you got and Numo converts with it. One on Free, unlimited with Numo Pro.

Currencies of your own

Add a local coupon, a game currency or anything else with a known rate, and convert it like any other. One on Free, unlimited with Numo Pro.

See what you’ll really pay.

Numo Pro adds the tools for real-world money: currency setups, bank fees, more alerts and history, advanced widgets and prices shared from other apps.

Numo Pro, your way

Monthly, yearly or once for life. Every plan unlocks currency setups, bank fees, 20 price alerts, a year of rate history, unlimited custom rates and currencies, advanced widgets, sharing from other apps and extra app icons.

See pricing

Bank fees, included Pro

Add your bank’s fee — a percentage, a fixed amount or both — and every result shows an estimate with a cost breakdown. Save fees like Card +2% and switch with a tap.

Widgets on every screen

Smart amounts, Rate trend, larger and Lock Screen widgets with Numo Pro. The Small rates widget, also in StandBy, is free.

Works anywhere. Even offline.

Private, ad-free and ready when the signal isn’t.

Works offline

The latest rates are saved on your iPhone, so conversions keep working on a plane, abroad or underground.

Private by design

The amounts you convert never leave your iPhone.

  • No account
  • No ads
  • Amounts stay on device

Rates you can trust

Central-bank reference rates from Frankfurter, with ExchangeRate-API as a backup — or pick one. Crypto prices from CoinMarketCap.

Light or dark

Follows your iPhone, or choose Light or Dark in Settings.

Free to use. Pro when you want more.

Free

No account, no trial, no catch.

$0 forever

Everything you need for everyday conversions.

  • Unlimited conversions
  • Every currency and 20 cryptocurrencies
  • Built-in calculator and price scanner
  • Offline rates
  • 1 active price alert
  • 7- and 30-day rate history
  • One custom rate and one custom currency
  • Small Home Screen widget
  • No ads

Numo Pro

Billing period

$1.99 / month

Renews monthly. Cancel anytime.

$9.99 / year Save 58%

$0.83 a month, billed yearly

$19.99 once

One-time purchase. Yours for good.

  • Currency setups for every trip
  • Bank fees with presets and a cost breakdown
  • Up to 20 price alerts
  • Rate history over 3 months and a year
  • Unlimited custom rates and currencies
  • Larger, Lock Screen, Smart amounts and Rate trend widgets
  • Convert prices shared from other apps
  • Favorite Currency control
  • Alternate app icons

Prices in USD; your local price is shown in the App Store. Subscriptions renew automatically until cancelled in your Apple Account settings.

Questions, answered.

Is Numo free?

Yes. The full converter — every currency and 20 cryptocurrencies, the calculator, the price scanner and offline rates — is free with no ads, along with one price alert, 30 days of rate history and one custom rate and currency. Numo Pro is an optional upgrade for currency setups, bank fees, up to 20 alerts, a year of rate history, advanced widgets, sharing from other apps and app icons — monthly, yearly or as a one-time purchase.

Can Numo tell me when a rate changes?

Yes. Create a price alert for a currency or a coin and Numo sends a notification when the rate rises above or falls below the level you choose. Alerts are checked against daily reference rates, so a notification can arrive hours after the rate moves. Numo Free includes one active alert, Numo Pro up to 20.

Can I convert a price by pointing the camera at it?

Yes. Tap the camera key on the keypad and point it at a price tag, a menu or a receipt; Numo converts the price it reads. You can also scan a photo. Text is recognized on your iPhone and images are never uploaded.

Does Numo convert cryptocurrencies?

Yes. Add any of 20 popular coins, including BTC, ETH and USDT, to your list next to your currencies. Prices are provided by CoinMarketCap.

Can I see how a rate has changed?

Yes. Tap a currency to see its chart over the last 7 or 30 days, or over 3 months and a year with Numo Pro. The Rates list shows every currency against yours, each with its weekly trend.

Does it work without internet?

Yes. The latest rates are saved on your iPhone and used offline. The app shows how fresh they are and refreshes them when you’re back online.

Can I keep different currencies for different trips?

Yes. In Settings › Currency setups, add a list such as Travel or Work with its own currencies and icon, then swipe the title on the main screen to switch between it and your default list. Currency setups are part of Numo Pro.

Where do the exchange rates come from?

Reference rates come from Frankfurter, which publishes central-bank data, with ExchangeRate-API as a backup. Pick one in Settings or leave it on Auto. Cryptocurrency prices are provided by CoinMarketCap.

Why is my card’s rate different?

Banks, cards, ATMs and exchange offices rarely use the reference rate. With Numo Pro, add your bank’s fee — a percentage, a fixed amount or both — and every conversion shows an estimate with a cost breakdown, with the reference rate in view. Save fees like Card +2% or ATM +3% and switch in one tap. Your bank’s final charge may differ.

Which widgets are there?

The Small rates widget is free and also shows in StandBy. Numo Pro adds larger and Lock Screen widgets, Smart amounts and Rate trend, a widget base currency of your choice and a Favorite Currency control in Control Center.

What data does Numo collect?

No account and no ads. The amounts you convert, your currency lists, custom rates and currencies stay on your iPhone, and the price scanner reads text on the device without uploading images. If you use price alerts, the currency pair, alert amount, threshold and notification token go to Numo’s alert service. Anonymous diagnostics help fix crashes — see the Privacy Policy for details.

Is there an iPad or Mac version?

Numo is for iPhone. iPad and Mac versions are planned for later releases.

Numo app icon

Any price, in your currency.

A fast, private currency converter for iPhone.

Download on the App Store