# ND Stack Timer — ND Filters & Exposure Timer

> ND Filters & Exposure Timer (iPhone/iPad app by 光 杨.)

- Source: https://appshunter.io/ios/app/nd-stack-timer/id6777736747 (this page in markdown: same URL + `.md`)
- Developer: [光 杨](https://appshunter.io/developer/1891134953)
- Category: Photo & Video, Utilities
- Price: $2.99
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English
- Released: 2026-06-10
- Data updated: 2026-08-28
- User reviews in markdown: https://appshunter.io/ios/app/nd-stack-timer/id6777736747/reviews.md

## What is ND Stack Timer?

ND Stack Timer is an offline long-exposure calculator for photographers who combine neutral-density filters in the field.

Use it to:

- add up to three ND filter stop values
- convert a base shutter speed into a corrected exposure
- see the factor added by the stacked filters
- round the exposure for a practical timer target
- share a plain-text exposure note for a shot list

Why people pay for it:

- long-exposure stop math is easy to miss when light is changing
- the app focuses on stacking, timing, and readable field output instead of a generic camera toolkit
- no account, ads, subscription, analytics SDK, or server dependency

ND Stack Timer is a photography calculator only. It does not control your camera, access Photos, analyze images, or guarantee final exposure.


## Version history (last 1 release)

### 1.0 — 2026-06-11

No release notes.

## More apps by 光 杨

- [ConcretePour Pro](https://appshunter.io/ios/app/concretepour-pro/id6761770433)
- [Roofing Cost Estimator](https://appshunter.io/ios/app/roofing-cost-estimator/id6761807843)
- [Cut Optimizer Pocket](https://appshunter.io/ios/app/cut-optimizer-pocket/id6761807889)
- [KitchenBatch Pro](https://appshunter.io/ios/app/kitchenbatch-pro/id6761807896)
- [Tile Layout Pocket](https://appshunter.io/ios/app/tile-layout-pocket/id6761807981)
- [TipSmart Splitter](https://appshunter.io/ios/app/tipsmart-splitter/id6761808040)

All apps by 光 杨: https://appshunter.io/developer/1891134953

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*