---
title: "Tideglass - Reviews, Revenue and Downloads in Portugal | Apple App Store"
description: "Tideglass is a free, offline tide instrument for iPhone and Apple Watch. Designed like a vintage marine chronometer in brass and navy — no ads, no accounts, no internet required.  FEATURES ◆ ~8,000 ti"
---

# Tideglass — Portugal

![Tideglass App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/11/fa/b4/11fab48b-5461-3448-6a6e-cac1e9b5e4d0/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [Ivan Shestakov](https://apptail.io/developer/ivan-shestakov-iaRWic)
**Category:** Weather
**Rating:** 5.0/5 (1 ratings)
**Price:** Free
**Bundle ID:** com.panic-kit.tideglass-app
**Store:** Apple App Store
**Country:** Portugal
**Version:** 1.2.2 (released 2026-06-19)
**Original Release:** 2026-06-01
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/pt/app/app/id6774728879)
**AppTail Page:** [https://apptail.io/app/tideglass-ikgA/portugal](https://apptail.io/app/tideglass-ikgA/portugal)

## Tideglass Description
Tideglass is a free, offline tide instrument for iPhone and Apple Watch. Designed like a vintage marine chronometer in brass and navy — no ads, no accounts, no internet required.

FEATURES
◆ ~8,000 tide stations worldwide, all bundled in the app
◆ Pannable 24-hour chart with a static centre cursor — swipe to scrub ±7 days, with a magnetic snap when you cross "now"
◆ 30-day histogram: every day's maximum high and minimum low as paired bars, with the spring/neap pulse plain to see
◆ 12-month envelope: a smoothed year-at-a-glance view of the highs and lows around your spot
◆ Top-5 tide rankings: see the biggest highs and deepest lows in any visible window
◆ Sunrise, sunset, moon phase, and your nearest station's name at a glance
◆ Mechanical-drum readout for time and water level, with selection haptics as you scrub
◆ Apple Watch standalone — runs without iPhone, same instrument feel on the wrist

PRIVACY
◆ Location is read only on device to find your nearest tide station — nothing is transmitted, stored, or shared
◆ No accounts, no analytics, no ads, no tracking

DATA
Tide harmonics derived from the open OpenWaters database (NOAA + TICON-4). Predictions are sub-hour accurate at most reference stations. Subordinate stations rely on time and height offsets from a parent station.

RECREATIONAL USE ONLY. Not for marine navigation. Always consult official hydrographic publications for safety-critical decisions.

## Tideglass Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/9d/21/11/9d21115b-a0ef-0386-0caa-6b2b1b326553/tideglass-iphone-24h.png/1320x2868.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/86/91/c9/8691c9f1-2fb2-2750-4512-7717b420b6f9/tideglass-iphone-30d.png/1320x2868.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/e6/60/a7/e660a706-76f4-15ec-66f7-94c61c43d639/tideglass-iphone-1y.png/1320x2868.png)

## Tideglass Rating Breakdown in Portugal
- 5 stars: 1 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)






## Tideglass Available In
- [Portugal](https://apptail.io/app/tideglass-ikgA/portugal)
- [Austria](https://apptail.io/app/tideglass-ikgA/austria)
- [Brunei](https://apptail.io/app/tideglass-ikgA/brunei)
- [Chile](https://apptail.io/app/tideglass-ikgA/chile)
- [China](https://apptail.io/app/tideglass-ikgA/china)
- [Colombia](https://apptail.io/app/tideglass-ikgA/colombia)
- [Czechia](https://apptail.io/app/tideglass-ikgA/czechia)
- [Denmark](https://apptail.io/app/tideglass-ikgA/denmark)
- [Estonia](https://apptail.io/app/tideglass-ikgA/estonia)
- [Egypt](https://apptail.io/app/tideglass-ikgA/egypt)
- [Finland](https://apptail.io/app/tideglass-ikgA/finland)
- [Hong Kong SAR China](https://apptail.io/app/tideglass-ikgA/hong-kong)
- [Hungary](https://apptail.io/app/tideglass-ikgA/hungary)
- [India](https://apptail.io/app/tideglass-ikgA/india)
- [Japan](https://apptail.io/app/tideglass-ikgA/japan)
- [Norway](https://apptail.io/app/tideglass-ikgA/norway)
- [Pakistan](https://apptail.io/app/tideglass-ikgA/pakistan)
- [Poland](https://apptail.io/app/tideglass-ikgA/poland)
- [Singapore](https://apptail.io/app/tideglass-ikgA/singapore)
- [United States](https://apptail.io/app/tideglass-ikgA/united-states)
- [Argentina](https://apptail.io/app/tideglass-ikgA/argentina)
- [Uzbekistan](https://apptail.io/app/tideglass-ikgA/uzbekistan)

---

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