# Filters vs Chrono Plus

The clearest difference is review sentiment: Chrono Plus at 72% against Filters's 0%. Chrono Plus also leads on price (Free vs $0.99) and rating (4.1 vs 3.0). Filters's advantage is in-app purchases (none vs 1) and ads (none vs shown).

Chrono Plus is free to download; Filters costs $0.99 up front. Chrono Plus sells 1 one-off in-app purchase. Filters asks for nothing beyond the download.

Chrono Plus holds the better App Store score, 4.1 against 3.0. That said, the two scores are not equally well evidenced: Chrono Plus has 75 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Filters's written reviews are positive against 72% of Chrono Plus's.

Filters ships an update every 40 months, Chrono Plus every 14 months. The most recent releases landed on September 7, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | Filters | Chrono Plus |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/filters/id369326771/reviews) | **[4.1 (75 ratings)](https://appshunter.io/ios/app/chrono-plus-time-tracker/id944992206/reviews)** |
| Number of ratings | 1 | **75** |
| Positive reviews | 0.0% of reviews | **71.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 40 months | **Every 14 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 3 MB | 19 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gianluca Natalini](https://appshunter.io/developer/348380792) | [Denys Ievenko](https://appshunter.io/developer/427936468) |

## What reviewers say

### Filters

[App page](https://appshunter.io/ios/app/filters/id369326771)

This application assists in calculating electronic filter components for speaker systems. It automatically determines inductor and capacitor values based on desired impedance and cutoff frequency, and designs circuits for various speaker types. Users can visualize frequency and phase diagrams for their custom speaker designs.

**Highlights:** Automatic electronic component calculation, Frequency and phase diagram display (Bode plots), Electronic circuit schema display, Support for various speaker types (high, mid, low, sub), First and second-order filter design, Complete filter theory and formulas

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Chrono Plus

[App page](https://appshunter.io/ios/app/chrono-plus-time-tracker/id944992206)

This app helps freelancers and hourly professionals manage tasks, track work hours, and calculate costs. It offers features for task creation, time and cost tracking, and invoice generation, with cross-device synchronization. Visualize project progress with graphs and charts.

**Highlights:** Task and subtask creation, Time and cost tracking, Multiple hourly rates, Built-in invoice generator, Project visualization, Cross-device synchronization

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro Features | $4.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🔄 Seamless cross-device syncing
- 💰 Affordable/subscription-free
- ✅ Basic functionality works well
- 📊 Good for organizing tasks/projects

**What reviewers complain about**

- 🐛 Syncing issues reported
- 🐛 Login problems
- 🐛 Ads in paid app
- 🐛 Lost hours of work
- 🐛 Invoice feature limitations

**Reported bugs**

- Won't sync
- Can't log in
- Ads showing in paid app
- App stopped syncing between devices
- Lost hours of work

**Requested features**

- Dark mode
- Ability to move projects into folders
- Allow system font usage and bold fonts
- Produce invoice for entire project/folder
- Produce invoices for specific periods


## Frequently asked questions

### Is Filters free?

Filters costs $0.99, with no in-app purchases.

### Is Chrono Plus free?

Chrono Plus is free to download, with in-app purchases available.

### Which has better reviews, Filters or Chrono Plus?

Chrono Plus is rated higher. Filters averages 3.0 out of 5 from 1 ratings, while Chrono Plus averages 4.1 from 75 ratings.

### Do Filters or Chrono Plus have ads?

Chrono Plus shows ads; Filters does not.

### Which is updated more often, Filters or Chrono Plus?

Filters ships an update every 40 months, and Chrono Plus every 14 months. Most recently, Filters was updated on September 7, 2026 and Chrono Plus on August 18, 2026.

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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.*