# Concern vs Sol Frontiers

Concern and Sol Frontiers both sit at 4.3 stars, but that hides the real split: 59% of Sol Frontiers's written reviews are positive against 46% of Concern's. Sol Frontiers also leads on iOS requirement (13.0 vs 15.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Concern sells 10 one-off in-app purchases and Sol Frontiers sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.3 for Concern against 4.2 for Sol Frontiers. Both are backed by a comparable volume of ratings — 258 and 122 respectively. Written reviews are what separate them: 46% of Concern's written reviews are positive against 59% of Sol Frontiers's.

Concern ships an update every 3 weeks, Sol Frontiers fortnightly. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Concern | Sol Frontiers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (258 ratings)](https://appshunter.io/ios/app/concern-mech-tactics/id6447686430/reviews)** | [4.2 (122 ratings)](https://appshunter.io/ios/app/sol-frontiers-idle-strategy/id6460690100/reviews) |
| Number of ratings | **258** | 122 |
| Positive reviews | 46.2% of reviews | **58.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 646 MB | 192 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 12+ |
| Developer | [Black Box Digital](https://appshunter.io/developer/1756883186) | [Early Morning Studio AB](https://appshunter.io/developer/507813427) |

## What reviewers say

### Concern

[App page](https://appshunter.io/ios/app/concern-mech-tactics/id6447686430)

Engage in strategic turn-based combat by building and managing a unique squad of giant combat robots. Lead your mercenary organization through offline and PvP battles, upgrading your arsenal and making critical leadership decisions that impact your organization's fate.

**Highlights:** Turn-based strategic combat, Build and customize mech squads, Offline and PvP robot wars, Mech collection and upgrades, Leadership decisions and organization management, Explore new adventures and rewards

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 150 Parts | $2.49 | one-time |
| Money 5000 | $2.99 | one-time |
| 60 Parts | $2.99 | one-time |
| Starter Pack | $3.49 | one-time |
| 12'000 Money | $4.49 | one-time |
| No Ads + Gift | $4.99 | one-time |
| 150 Parts | $4.99 | one-time |
| 5'000 Money | $5.99 | one-time |
| Starter pack | $6.99 | one-time |
| 12'000 Money | $9.99 | one-time |

**What reviewers like**

- 👍 Good core gameplay
- 👍 Reminiscent of Battletech
- 👍 Good graphics and atmosphere
- 👍 Stable and fluid performance
- 👍 Interesting gameplay mechanics

**What reviewers complain about**

- 😠 Overwhelming ads
- 😠 Ads are time-consuming
- 😠 Little payoff for watching ads
- 😠 Pay to win is obvious
- 😠 Game stagnates without payment

**Reported bugs**

- Missions won't load after update
- Building points eaten when upgrading mechs
- Game Center save progress and purchases lost after update
- Restore purchases button does nothing
- Game cannot customize colors after update

**Requested features**

- More robots, modules, and weapons
- More diverse storylines
- More clans and familiar mechs
- More missions for parts
- Return of original mech speed/step


### Sol Frontiers

[App page](https://appshunter.io/ios/app/sol-frontiers-idle-strategy/id6460690100)

Embark on a sci-fi odyssey to reclaim humanity's lost home. Captain a mothership, awaken your crew, gather resources, and battle cosmic threats in an idle strategy adventure.

**Highlights:** Explore uncharted cosmos, Battle the Swarm and Deeper Darkness, Upgrade mothership and starfighters, Awaken and train diverse crew, Gather resources for repairs, Idle gameplay mechanics

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Packet of Credits | $0.99 | one-time |
| Canister of Dark Matter | $2.99 | one-time |
| Starter Pack | $2.99 | one-time |
| Starter Bundle | $4.99 | one-time |
| Starter Package | $7.99 | one-time |
| Array of Credits | $9.99 | one-time |
| Array of Dark Matter | $14.99 | one-time |
| Stockpile of Credits | $29.99 | one-time |
| Vault of Credits | $59.99 | one-time |
| Vault of Dark Matter | $59.99 | one-time |

**What reviewers like**

- 🎨 Beautiful graphics
- 👍 Enjoyable gameplay loop
- ⭐ Similar to other successful games
- 💡 Innovative space theme
- 🚀 Good for patient players

**What reviewers complain about**

- ⏳ Slow progression
- ⏳ Long wait times
- 💰 Pay-to-win elements
- 💸 Expensive in-game purchases
- 😩 Repetitive gameplay

**Reported bugs**

- Save progress not working
- Game no longer works on iPhone 12
- Awaken 2 heroes bug
- Crew is locked
- Cannot save progress due to no login

**Requested features**

- Add skip ad feature
- Add overview map
- Option to buy with less/no ads
- Add building base options
- Add ship customization


## Frequently asked questions

### Is Concern free?

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

### Is Sol Frontiers free?

Sol Frontiers is free to download, with in-app purchases available.

### Which has better reviews, Concern or Sol Frontiers?

Concern is rated higher. Concern averages 4.3 out of 5 from 258 ratings, while Sol Frontiers averages 4.2 from 122 ratings.

### Do Concern or Sol Frontiers have ads?

Both Concern and Sol Frontiers show ads.

### Which is updated more often, Concern or Sol Frontiers?

Concern ships an update every 3 weeks, and Sol Frontiers fortnightly. Most recently, Concern was updated on November 7, 2026 and Sol Frontiers on November 3, 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.*