# Chronicle (SPECTRA study) vs Barometric Pressure Offline

The clearest difference is in-app purchases: Chronicle (SPECTRA study) at none against Barometric Pressure Offline's 5. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Barometric Pressure Offline sells 5 in-app purchases, starting at $4.99 per 7 days. Chronicle (SPECTRA study) asks for nothing beyond the download.

## The numbers

| Metric | Chronicle (SPECTRA study) | Barometric Pressure Offline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (210 ratings)](https://appshunter.io/ios/app/barometric-pressure-offline/id6742408392/reviews)** |
| Number of ratings | — | **210** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 83 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Methodic, Inc.](https://appshunter.io/developer/1618305706) | [Pablo Paciello](https://appshunter.io/developer/834434174) |

## What reviewers say

### Chronicle (SPECTRA study)

[App page](https://appshunter.io/ios/app/chronicle-spectra-study/id6578461534)

**In-app purchases:** none


### Barometric Pressure Offline

[App page](https://appshunter.io/ios/app/barometric-pressure-offline/id6742408392)

This app tracks barometric pressure and altitude, working offline to keep you informed about weather changes. It provides alerts for deteriorating weather and sudden pressure shifts, which can be helpful for managing certain health conditions. Users can view historical data, export it, and utilize home screen widgets.

**Highlights:** Offline pressure and altitude tracking, Deteriorated weather alerts, Sudden pressure change alerts, History tracking and trend prediction, Export history to CSV & JSON, iOS Widgets for home and lock screen

**Features:** iPhone Duo support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Subscription weekly | $4.99 | per 7 days |
| PRO Subscription monthly | $9.99 | per month |
| PRO Subscription yearly | $29.99 | per year |
| Barometer Lifetime | $9.99 | one-time |
| Barometer Lifetime | $49.99 | one-time |

**What reviewers like**

- 👍 Clean, simple, easy to use
- 💰 Reasonable one-time fee
- 🚀 Fast developer response
- 💯 Accurate and dependable
- 🔒 Good privacy, no data collection

**What reviewers complain about**

- ❌ Not detailed enough for migraines
- 🔄 Does not refresh automatically
- ❓ Unclear data access requirements
- 🔋 High battery usage due to location services
- 📍 Location services required

**Reported bugs**

- App does not notify of significant changes
- App does not refresh unless manually opened
- Motion data access needed screen with no clear resolution
- Lock screen widget does not update without opening the app
- Typo in 'deteriorated'

**Requested features**

- More frequent updates and readings
- Notifications for pressure drops over a wider range of hours (4-7)
- Re-add notifications/alarms for barometric pressure increases
- Self-adjusting vertical scale for pressure trend graph
- User-selectable notification threshold


## Frequently asked questions

### Is Chronicle (SPECTRA study) free?

Chronicle (SPECTRA study) is free to download, with no in-app purchases.

### Is Barometric Pressure Offline free?

Barometric Pressure Offline is free to download, with in-app purchases available.

### Do Chronicle (SPECTRA study) or Barometric Pressure Offline have ads?

Neither Chronicle (SPECTRA study) nor Barometric Pressure Offline shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*