# DuoTask Spark vs RewardLens

The clearest difference is update cadence: DuoTask Spark at weekly against RewardLens's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DuoTask Spark ships an update weekly, RewardLens fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | DuoTask Spark | RewardLens |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.3 (3 ratings)](https://appshunter.io/ios/app/rewardlens/id6789171972/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | — | Free |
| Size | 21 MB | 21 MB |
| Requires iOS | **17.0** | 18.5 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Aislan Lander](https://appshunter.io/developer/1260013157) | [Motions Research LLC](https://appshunter.io/developer/1021200777) |

## What reviewers say

### DuoTask Spark

[App page](https://appshunter.io/ios/app/duotask-spark/id6757406832)

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

**In-app purchases:** none


### RewardLens

[App page](https://appshunter.io/ios/app/rewardlens/id6789171972)

Earn rewards by creating short videos about products you purchase and use. These videos provide valuable market research for manufacturers. Redeem your earned points for gift cards and invite friends to increase your earnings.

**Highlights:** Create product videos for rewards, Participate in market research projects, Earn points and redeem gift cards, Invite friends for increased earnings, Share shopping and usage experiences

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

**In-app purchases:** none


## Frequently asked questions

### Is DuoTask Spark free?

DuoTask Spark is free to download, with no in-app purchases.

### Is RewardLens free?

RewardLens is free to download, with no in-app purchases.

### Do DuoTask Spark or RewardLens have ads?

Neither DuoTask Spark nor RewardLens shows ads.

### Which is updated more often, DuoTask Spark or RewardLens?

DuoTask Spark ships an update weekly, and RewardLens fortnightly. Most recently, DuoTask Spark was updated on October 24, 2026 and RewardLens on October 24, 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.*