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TidewaveProductWeb appShared budgetsPricingSign inGet the app

Safe to spend today€48.20

Budget by the day.

Tidewave adds up your accounts, sets aside every bill until pay day and gives you one number each morning: what you can spend today.

Get TidewaveOpen the web app

★★★★★4.8 on the App Store from 31,200 ratings

€639.78In your accounts−€205.98Bills to pay day=€433.80Left to spend÷9 daysUntil pay day
Shared goalLisbon, May 2027€2,340of €3,600

The detail, when you want it.

See where the month went, and freeze your card in under a second.

9:41
Tuesday 22 SeptemberToday
Safe to spend today
€48.201 Sep30 Sep
€433.80 for 9 days until pay day
Before pay day€205.98
KKestrel MobileThu 24 Sep€14.99
LLisbon goalFri 25 Sep€150.00
IIronleaf GymSat 26 Sep€29.00
RReelhouseMon 28 Sep€11.99
TodayInsightsCardShared
9:41
Tuesday 22 September9:41
48€Tidewave · Today€48.209 days to pay day
Tidewavenow€48.20 safe to spend todayRent is covered. €150 goes to Lisbon on Friday.
9:41
September 20262026Insights
WeekMonthYear
Spent in September€1,742.30of a €2,300 budget
Spent in 2026€19,602.30of a €27,600 budget
01,0002,000Budget €2,300Today18152230JFMAMJJASOND
TodayInsightsCardShared
9:41
Main accountCard
TidewaveDebitNINA MARIN•••• 447109/29Card frozenPayments are paused
Card details and PIN
Freeze card
Online payments
Contactless
TodayInsightsCardShared

Your month, at full size.

Search, split and sort every account together on the web.

app.tidewave.ewc.dev
Tidewave
Nina & Theo
TodayTransactionsBudgetsGoalsSettings
TransactionsSeptember 2026Add transaction
Money out−€1,742.30Money in€640.00Net−€1,102.30
Day to day spending
DateMerchantCategorySplitAmount
22 SepMMorrow BakeryEating out−€3.40
21 SepFFennel & Co.Groceries60 / 40−€52.71
20 SepSSaltmarsh KitchenEating out50 / 50−€84.00
18 SepHHearthline EnergyHome50 / 50−€86.40
17 SepOOakridge PressIncome+€640.00
Transaction
SSaltmarsh KitchenSunday 20 September, 21:14
−€84.00Eating outDinner for our anniversary
Split 50 / 50
NinaPaid €84.00€42.00
TheoOwes €42.00€42.00
Settle up

Saving for Lisbon together.

Nina and Theo each put money in. Their own accounts stay private.

221 days to go
Shared goalLisbon, May 2027
€2,340of €3,600
Nina€1,380
Theo€960

Plans for one person or two.

Prices include VAT. Cancel any time.

Read-only bank accessData kept in the EUFace ID on every card change
Free€0for one personStart free
Plus€3.90a monthTry free
Duo€5.90a month, for twoTry free
Bank connections2UnlimitedUnlimited
Shared budgets
Cards1 virtual1 physical2 physical
TidewaveHelpSecurityPrivacyEnglishΕλληνικάRomână© 2026 Tidewave Labs

TidewaveA budgeting app, its launch site and web dashboard. Fictional business, built to show the work.

What to look at

What this covers

Every service in this family.

Interactive products used by customers, members or the public. 20 services

  • Booking and scheduling appsAvailability, appointments, resources, cancellations and reminders.
  • Customer and member portalsAccounts, documents, requests, purchases and self-service.
  • Marketplaces and directoriesListings, discovery, matching, seller tools and transactions.
  • Subscription products and SaaSSoftware for many customers, with entitlements and data kept per customer.
  • Learning and assessment appsLessons, progress, assessments and learner administration.
  • Community and social appsProfiles, groups, feeds, messaging and user contributions.
  • Ordering, delivery and logisticsOrders, dispatch, routing integrations and status tracking.
  • Property and travel applicationsSearch, enquiries, itineraries, bookings and management workflows.
  • Health and wellness applicationsScheduling, information and consent-aware workflows, with specialist review where needed.
  • Events, tickets and loyaltyRegistrations, attendee tools, rewards and membership benefits.
  • Calculators and configuratorsEstimates, quotes, comparisons and customized product selections.
  • Payments and billing interfacesCheckout, invoices and subscriptions through supported payment services.
  • Real-time collaborationShared documents, presence, messaging and synchronized workspaces.
  • Maps and location applicationsSpatial search, navigation integrations and location-based information.
  • Progressive web apps (PWA)Installable browser apps with selected offline and device features.
  • Native and cross-platform mobileiOS and Android products, with platform-specific integrations where needed.
  • Browser extensionsBrowser tools and workflow integrations within supported extension APIs.
  • Interactive 3D, games and simulationsProduct viewers, configurators, training simulations and scoped games.
  • Connected-device interfacesDashboards and control surfaces for compatible hardware or IoT systems.
  • Existing app modernizationRedesign, migrations, accessibility, performance and feature development.
Technology options

React with TypeScript, with Next.js or React Router, suits many web products; Vue with Nuxt, Svelte with SvelteKit and Angular are alternatives. Mobile options include React Native with Expo, Flutter with Dart, Swift with SwiftUI and Kotlin with Jetpack Compose. APIs and data stores are chosen separately.

How we choose technology

Questions

Native or cross-platform?

It depends on the product. Some apps need Swift and Kotlin; many do well with one shared codebase in React Native. We explain the choice before we make it.

Can you build just the first version?

Yes. We scope a first release that is useful on its own, then plan what comes next with you.

Who publishes the app in the stores?

We prepare the listings and handle the submissions and reviews as part of the work.

Does the app need its own website?

Usually a launch page helps. We can build it alongside the app, so the story and the product match.

Start

Tell us what you are building.

A short description is enough. You get a straight read on scope, cost, and our honest take on the best approach, before anyone commits.

Write to [email protected] · New projects and general questions

  • Built from zero, no templates
  • Hosted and maintained by the same team
  • Scope and cost agreed before we start
  • Updates, monitoring and support after launch
  • Findable in search and AI answers