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Portfolio14 apps published on the App Store

We turn ideas into digital products.

Mobivalley designs, builds and evolves apps and digital products, from games with real-time multiplayer to AI that runs right on the device.

See our productsGet in touch
  • Place Guesser
  • AeroExplorer
  • Sticker Maker
  • Unsaid
  • SpeakScroll
  • Photo Cleanup

Games, AI, photo and video, maps, family and finance.

AeroExplorer showing the Statue of Liberty in 3D

Place Guesser

4.7 on the App Store

On-device AI

OffChat · offline

apps published on the App Store
14
year our first app launched
2018
Apple platforms in a single product
4
languages in Place Guesser
9

Services

From the first sketch to the next release.

We take care of a digital product's whole lifecycle: the people who design the solution also write the code, ship it to the stores and keep improving it after launch.

  1. 01

    App development

    Native apps for iPhone, iPad, Apple Watch and Apple TV, with the performance and polish people expect from an App Store app.

    • Native, accessible interfaces
    • Widgets, extensions and Game Center
    • Subscriptions and in-app purchases
  2. 02

    Digital products

    From idea to complete product: scope, interface design, backend and everything a product needs to work with real users.

    • Discovery and MVP definition
    • Interface design and prototypes
    • APIs, data and real-time features
  3. 03

    Technology consulting

    Technical guidance for decisions that are expensive to get wrong: architecture, stack choices, privacy and the path to launch.

    • Architecture and technical review
    • App Store launch planning
    • Privacy and on-device processing
  4. 04

    Evolution and maintenance

    Launch is only the beginning. We track metrics and reviews, fix, optimize and ship new features in short cycles.

    • Updates for every new iOS release
    • Improvements driven by data and feedback
    • New features, shipped often

Products

We don't just build apps. We publish our own.

14 apps on the App Store, created, launched and maintained by Mobivalley. Each one solves a different problem, and all of them went the same way: idea, product, launch and evolution.

See all on the App Store (opens in a new tab)

Featured

Games · Casual · Travel · since 2023

Place Guesser

A geography game built on real street-level imagery: look around, drop a pin on the map and see how close you got. It has a Daily Challenge with a global leaderboard, real-time multiplayer, async challenges with friends and a Passport of every country you've visited.

rating on the US App Store, from 700+ reviews
4.7
languages, from Portuguese to Japanese
9
platforms: iPhone, iPad, Apple Watch and Apple TV
4
  • Imagery from Apple Look Around and Google Street View
  • Real-time multiplayer and Game Center leaderboards
  • Daily Challenge, Country Streak, Guess The Spot and Infinite Mode
Download on the App Store (opens in a new tab)About the app

Swipe to see more apps

  • AeroExplorer

    Travel · Entertainment · 2025

    Interactive maps with 3D Flyover: soar over cities and landmarks, jump to a random spot on Earth and switch between standard, satellite and hybrid styles.

  • Sticker Maker

    Photo & Video · Graphics & Design · 2019

    Turns photos into stickers in seconds, with automatic background removal, animated stickers and one-tap sending to WhatsApp, Telegram and iMessage. Everything is made on the device, with no account.

  • Unsaid

    Games · Family · 2026

    A party word game: describe the word on the card so your team guesses it, without saying any of the forbidden words. Two to four teams pass the phone, fully offline.

  • SpeakScroll

    Photo & Video · Productivity · 2026

    Teleprompter and camera in one app: your script scrolls over the camera while you look straight at the lens, and it can follow your voice. Speech recognition runs on the iPhone itself.

  • Photo Cleanup

    Photo & Video · Utilities · 2026

    Finds duplicate, similar and blurry photos, screenshots and large videos. All the analysis happens on your iPhone; no photo is ever uploaded.

  • OffChat

    Travel · Productivity · 2026

    An AI travel assistant that keeps working without internet. Prepare your trip online, then on the plane or without roaming check flights and hotels, convert prices and show phrases in the local language.

  • LittleTube

    Entertainment · Education · 2025

    A video player for kids that only plays what parents picked: no feed, no Shorts and no algorithm choosing what comes next. Links are locked behind Face ID.

  • Work Hour Manager

    Business · Productivity · 2018

    Time and pay tracking for freelancers, contractors and hourly workers: one tap starts your shift and your earnings grow in real time. No account, no setup.

  • Trip Budget

    Travel · Finance · 2018

    Know how much money is left on your trip: add each expense in seconds, in any currency, and see your balance update as you go. Works offline, with no account.

  • Editais

    News · Reference · 2019

    Gathers Brazilian public-sector exams and selection processes open for registration in a single list. Every day, the app reads municipal official gazettes and the federal Diário Oficial da União.

  • Buttonboard

    Entertainment · Music · 2019

    Over 9,000 meme, viral, game, movie and sound effect clips: tap a button and the sound plays instantly. Save your favorites and send sounds to your friends.

  • Price Action

    Finance · Productivity · 2021

    A trade planner and journal: enter the asset, entry, target and stop, and the app calculates risk:reward and position size. When the trade closes, see the result in R and in money.

  • Stock Calc

    Finance · Business · 2020

    Calculates the average cost of every stock, REIT, ETF and BDR in your portfolio, fees included, and simulates how much to buy to reach a target average price.

How we work

A clear path, from idea to product.

Every product crosses a valley between the idea and the launch. Our process exists to cross it with method, frequent releases and evidence-based decisions.

  1. 01

    Discovery

    We learn the problem, the business goal and who will use the product. Before any screen, we define what has to go right.

  2. 02

    Strategy

    We set scope, architecture and priorities. The result is a lean plan, with an MVP that reaches users early.

  3. 03

    Development

    Design and code move together, in short cycles, with testable builds from the first weeks.

  4. 04

    Launch

    We prepare the release: store page, screenshots, Apple review, subscriptions and monitoring.

  5. 05

    Evolution

    We measure, read the reviews and improve. That's how Place Guesser reached version 1.64.0.

About Mobivalley

A technology company that builds its own products.

Mobivalley is a technology company focused on app development, digital products and consulting. Our first app reached the App Store in 2018, and we keep looking after each one long after launch.

That changes how we work with clients. We know what comes after the code: Apple's review, the first ratings, the metric that won't move, the urgent update for a new iOS version. When we take on a project, that experience comes with it.

  • Product before code

    Technology is a means. We start with the problem, the people who will use it and what needs to be measured.

  • Native where it matters

    3D maps, camera, Apple Watch, widgets: we use the best of each platform, with no shortcuts users can feel.

  • Private by default

    Whenever possible, data stays on the device, as in OffChat and Photo Cleanup.

  • Launch is the start

    Products get better with real use. Evolution is part of the plan from day one, not an afterthought.

Technology

Technical depth, proven in production.

Every capability below ships in at least one published app. We pick technology for what the product needs, not for fashion.

  • Apple platforms

    iPhone, iPad, Apple Watch and Apple TV, with widgets, share extensions and Game Center.

    In Place Guesser and LittleTube

  • Maps and the real world

    3D Flyover, Look Around and Street View, geolocation and distance between points.

    In AeroExplorer and Place Guesser

  • On-device AI

    A language assistant that works offline and photo analysis that never uploads anything.

    In OffChat and Photo Cleanup

  • Camera, photo and video

    Recording with a teleprompter overlay, automatic background removal and image editing.

    In SpeakScroll and Sticker Maker

  • Real time and backend

    Live multiplayer, daily challenges with a global leaderboard and async challenges between friends.

    In Place Guesser

  • Monetization

    Subscriptions, free trials and premium plans built on App Store purchases.

    In LittleTube and Price Action

Everyday tools

  • Swift
  • SwiftUI
  • WidgetKit
  • MapKit
  • GameKit
  • StoreKit
  • AVFoundation
  • PhotoKit
  • On-device AI
  • APIs and cloud
  • TypeScript
  • React
  • Next.js

Have an idea? Let's turn it into a product.

Tell us what you want to build. Mobivalley helps from strategy and product design to development, launch and the releases that follow.

Talk to Mobivalley