Mobile - Surveys Feature Parity

[ioannisj]

Mobile - Surveys Feature Parity

I don't think we track this anywhere. This was generated with Claude and I didn't go through it in detail. Let's have this place to keep track of survey features across SDKS?

Summary

Feature	Web	React Native	iOS	Android	Flutter
Core Implementation	✅ Full	✅ Partial	✅ Partial	✅ Partial	✅ Partial
Default UI	✅	✅	✅ (iOS 15+)	❌ (logs only)	✅

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1. Question Types

Question Type	Web	React Native	iOS	Android	Flutter
Open (Text)	✅	✅	✅	✅	✅
Link	✅	✅	✅	✅	✅
Rating	✅	✅	✅	✅	✅
Single Choice	✅	✅	✅	✅	✅
Multiple Choice	✅	✅	✅	✅	✅

Rating Question Features

Feature	Web	React Native	iOS	Android	Flutter
Emoji Display (3/5 scale)	✅	✅	✅	✅	✅
Number Display	✅	✅	✅	✅	✅
3-point Scale	✅	✅	✅	✅	✅
5-point Scale	✅	✅	✅	✅	✅
7-point Scale	✅	✅	✅	✅	✅
10-point Scale (NPS)	✅	✅	✅	✅	✅
Lower/Upper Bound Labels	✅	✅	✅	✅	✅

Choice Question Features

Feature	Web	React Native	iOS	Android	Flutter
Open Choice (Other)	✅	✅	✅	✅	✅
Shuffle Options	✅	❌ TODO	❌	❌	❌

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2. Survey Types

Survey Type	Web	React Native	iOS	Android	Flutter
Popover	✅	✅	✅	✅	✅
Widget (Tab)	✅	❌	❌	❌	❌
Widget (Selector)	✅	❌	❌	❌	❌
Widget (Button)	✅	❌	❌	❌	❌
API	✅	❌	❌	❌	❌
External Survey	✅	❌	❌	❌	❌

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3. Display Conditions / Targeting

Condition	Web	React Native	iOS	Android	Flutter
Device Type	✅	✅	✅	✅	✅*
URL Matching	✅	❌ N/A	❌ TODO	❌	❌ N/A
CSS Selector	✅	❌ N/A	❌ TODO	❌	❌ N/A
Linked Feature Flag	✅	✅	✅	✅	✅*
Targeting Feature Flag	✅	✅	✅	✅	✅*
Internal Targeting Flag	✅	✅	✅	✅	✅*
Multiple Feature Flags	✅	✅	✅	✅	✅*
Linked Flag Variant	✅	✅	❌	❌	❌
Seen Survey Wait Period	✅	❌ (commented)	❌	❌	❌

*Flutter delegates filtering to native iOS/Android SDKs

---

4. Activation Triggers

Trigger	Web	React Native	iOS	Android	Flutter
Page Load / App Open	✅	✅	✅	✅	✅
Event-based	✅	✅	✅	✅	✅*
Event Property Filters	✅	✅	❌	❌	❌
Action-based	✅	❌	❌	❌	❌
View Layout Change	❌	❌	✅	❌	❌
App Became Active	❌	❌	✅	❌	❌
Repeated Activation	✅	✅	✅	✅	✅*

*Flutter delegates to native SDKs

---

5. Branching Logic

Feature	Web	React Native	iOS	Android	Flutter
Next Question	✅	✅	✅	✅	✅*
End Survey	✅	✅	✅	✅	✅*
Specific Question Jump	✅	✅	✅	✅	✅*
Response-Based (Single)	✅	✅	✅	✅	✅*
Response-Based (Rating)	✅	✅	✅	✅	✅*
Rating Bucket Calculation	✅	✅	✅	✅	✅*

*Flutter delegates branching to native SDKs

---

6. Survey Events

Event	Web	React Native	iOS	Android	Flutter
survey shown	✅	✅	✅	✅	✅*
survey sent	✅	✅	✅	✅	✅*
survey dismissed	✅	✅	✅	✅	✅*
Survey iteration tracking	✅	✅	✅	✅	✅*
$set interaction props	✅	✅	✅	✅	✅*
$survey_questions in event	✅	✅	✅	✅	✅*

*Flutter delegates events to native SDKs

---

7. Advanced Features

Feature	Web	React Native	iOS	Android	Flutter
Shuffle Questions	✅	❌ TODO	❌	❌	❌
Survey Appearance Delay	✅	❌ TODO	❌	❌	❌
Partial Responses	✅	❌	❌	❌	❌
URL Prefill	✅	❌ N/A	❌	❌	❌
In-Progress State	✅	❌	❌	❌	❌
Survey Cancel Events	✅	❌	❌	❌	❌
Survey Schedule (Once/Recurring/Always)	✅	❌	❌	❌	❌

---

8. Appearance / Customization

Feature	Web	React Native	iOS	Android	Flutter
Background Color	✅	✅	✅	✅	✅
Submit Button Color	✅	✅	✅	✅	✅
Submit Button Text	✅	✅	✅	✅	✅
Submit Button Text Color	✅	✅	✅	✅	✅
Rating Button Colors	✅	✅	✅	✅	✅
Border Color	✅	✅	✅	✅	✅
Input Background	✅	✅	✅	❌ (delegate)	❌
Placeholder Text	✅	✅	✅	✅	✅
Thank You Message	✅	✅	✅	✅	✅
Auto Disappear	✅	❌	✅	❌	❌
Hide Cancel Button	✅	❌	❌	❌	❌
Position (Multiple)	✅	❌	❌	❌	❌
HTML Description	✅	❌ (text only)	✅	✅	❌ (text only)
Custom Font Family	✅	❌	✅	❌ (delegate)	❌

---

9. Architecture

Aspect	Web	React Native	iOS	Android	Flutter
Survey Loading	Remote Config	Remote Config	Remote Config	Remote Config (Push)	Native SDK
Survey Filtering	SDK	SDK	SDK	SDK	Native SDK
UI Rendering	Preact/HTML	React Native	SwiftUI	Delegate	Flutter Widgets
Custom Rendering	❌	❌	✅ Delegate	✅ Delegate	❌
Default UI	✅	✅	✅ (iOS 15+)	❌	✅

---

Tracked Issues

Display Conditions / Targeting

• Surveys: Support linkedFlagVariant for targeting specific feature flag variants posthog-ios#445
• Surveys: Support linkedFlagVariant for targeting specific feature flag variants posthog-android#388
• Surveys: Support linkedFlagVariant for targeting specific feature flag variants posthog-flutter#259

Appearance / Customization

• feat(surveys/react-native): Support custom fontFamily in survey appearance posthog-js#2959
• feat(surveys): Support custom fontFamily in survey appearance posthog-flutter#258
• Improve consistency when handling colors in surveys. posthog-flutter#233

Activation Triggers

• Surveys: Support event trigger property filters posthog-ios#449
• Surveys: Support event trigger property filters posthog-android#392
• Surveys: Support event trigger property filters posthog-flutter#263
• Add action-based survey targeting to React Native SDK posthog-js#2965
• Add action-based survey targeting posthog-ios#451
• Add action-based survey targeting posthog-android#394
• Add action-based survey targeting posthog-flutter#265

Advanced Features

• Support survey schedule 'always' (show every time) in React Native posthog-js#2961
• Support survey schedule 'always' (show every time) posthog-ios#446
• Support survey schedule 'always' (show every time) posthog-android#389
• Support survey schedule 'always' (show every time) posthog-flutter#260
• React Native: Support partial response collection posthog-js#2962
• Surveys: Support partial response collection posthog-ios#447
• Surveys: Support partial response collection posthog-android#390
• Surveys: Support partial response collection posthog-flutter#261
• React Native: Support auto-submit on selection (skipSubmitButton) posthog-js#2963
• Support auto-submit on selection (skipSubmitButton) posthog-ios#448
• Support auto-submit on selection (skipSubmitButton) posthog-android#391
• Support auto-submit on selection (skipSubmitButton) posthog-flutter#262
• Support survey cancellation events in posthog-react-native posthog-js#2964
• Support survey cancellation events posthog-ios#450
• Support survey cancellation events posthog-android#393
• Support survey cancellation events posthog-flutter#264