Advertise on 314DApp
314DApp offers exclusive display inventory across the home feed, app lists, app detail, and Bulletin Board. Only image creatives are accepted. For each slot, prepare two images — one for large screens (≥980px) and one for small screens — at the sizes listed below.
Flights of 30 / 90 / 365 days are available. For brand recall we recommend 90 days / 365 days.
Prices are in Pi, pegged to USD at the live Pi rate — the Pi amount may shift as the rate moves.
980px
Mobile / desktop break
Rate overview
| Tier | Slot | Where | Devices | 30 days | 90 days ★ | 365 days ★ |
|---|
| S | Home mid-page | Home | All devices | 233 Pi | 583 Pi | 1864 Pi |
| A | Apps list feed | Apps list, category pages | All devices | 169 Pi | 423 Pi | 1352 Pi |
| A | App detail sidebar | App detail | Desktop only (≥980px) | 195 Pi | 488 Pi | 1560 Pi |
| A− | App detail bottom | App detail | All devices | 143 Pi | 358 Pi | 1144 Pi |
| B+ | Article in-body | Article detail | All devices | 130 Pi | 325 Pi | 1040 Pi |
| B− | Articles list feed | Articles list | All devices | 110 Pi | 275 Pi | 880 Pi |
| B | Article detail bottom | Article detail | All devices | 91 Pi | 228 Pi | 728 Pi |
Where each slot appears
Home
- Hero carousel (developer promotion, not on this card)
- Browse · Top Charts
- Home mid-page ad
- Editor's Choice · Trending · Bulletin
App detail
- Desktop: left sticky column → App detail sidebar
- Main column reviews…
- App detail bottom
- You May Also Like
Lists
- Items 1–3
- Item 4
- Apps list feed / Articles list feed
- Item 5…
Article detail
- Cover · body (top)
- Article in-body
- Body (bottom) · tips
- Article detail bottom
Slot specs & creative sizes
Breakpoint is 980px. Deliver one large-screen and one small-screen image per slot (sidebar is large-screen only). Images scale to full slot width; Retina at 2× preferred.
SHome mid-page
Prime exposure · Banner
233 Pi / 30 days
583 Pi / 90 days
1864 Pi / 365 days
- Pages
- Home
- Position
- Between Top Charts and Editor’s Choice
- Devices
- All devices
- Mobile width
- ≤588px
- Desktop width
- ≤1192px
Creatives to prepare
| Screen | Size | Note |
|---|
| Large (≥980px) | 1200×90 | Full home column width |
| Small (<980px) | 320×50 | Mobile banner |
AApps list feed
High reach · Banner
169 Pi / 30 days
423 Pi / 90 days
1352 Pi / 365 days
- Pages
- Apps list, category pages
- Position
- After the 4th app (or end of list if ≤3)
- Devices
- All devices
- Mobile width
- Full column
- Desktop width
- Full 2-col grid span ≤1192px
Creatives to prepare
| Screen | Size | Note |
|---|
| Large (≥980px) | 1200×90 | List full-bleed |
| Small (<980px) | 320×50 | Mobile banner |
- Pages
- App detail
- Position
- Left column under Actions / App Info
- Devices
- Desktop only (≥980px)
- Mobile width
- Not shown
- Desktop width
- ~288–320px sticky
Creatives to prepare
| Screen | Size | Note |
|---|
| Large (≥980px) | 300×250 | Desktop sidebar only — no small-screen creative |
- Pages
- App detail
- Position
- After reviews, before “You May Also Like”
- Devices
- All devices
- Mobile width
- ≤688px
- Desktop width
- ~832px main column
Creatives to prepare
| Screen | Size | Note |
|---|
| Large (≥980px) | 800×90 | Main column width |
| Small (<980px) | 320×50 | Mobile banner |
B+Article in-body
Reading dwell · Banner
130 Pi / 30 days
325 Pi / 90 days
1040 Pi / 365 days
- Pages
- Article detail
- Position
- Mid-article between paragraphs
- Devices
- All devices
- Mobile width
- ≤648px
- Desktop width
- ≤672px
Creatives to prepare
| Screen | Size | Note |
|---|
| Large (≥980px) | 640×120 | Article column · ~120px tall |
| Small (<980px) | 320×100 | Slightly taller for readability |
B−Articles list feed
List secondary · Banner
110 Pi / 30 days
275 Pi / 90 days
880 Pi / 365 days
- Pages
- Articles list
- Position
- After the 4th article (or end if ≤3)
- Devices
- All devices
- Mobile width
- Full column
- Desktop width
- Full 2-col grid span
Creatives to prepare
| Screen | Size | Note |
|---|
| Large (≥980px) | 1200×90 | List full-bleed |
| Small (<980px) | 320×50 | Mobile banner |
BArticle detail bottom
Post-read reach · Banner
91 Pi / 30 days
228 Pi / 90 days
728 Pi / 365 days
- Pages
- Article detail
- Position
- After tip / actions, before related apps
- Devices
- All devices
- Mobile width
- Same as article column
- Desktop width
- Same as article column
Creatives to prepare
| Screen | Size | Note |
|---|
| Large (≥980px) | 640×90 | Article column width |
| Small (<980px) | 320×50 | Mobile banner |
Creative guidelines
- Formats: image only — JPG / PNG / WebP; animated GIF under ~1.5MB. No HTML or third-party tags.
- Two sizes: large screen (≥980px) and small screen — except App detail sidebar (large only).
- Retina: deliver 2× (e.g. 1200×90 → 2400×180).
- Safe area: keep critical copy ~4–6% inset from edges.
- Language: English preferred (site UI is English); include a clear CTA.
- Payment: rates are quoted in Pi. Contact us to book exclusive flight dates.
Not on this card
Homepage Hero, Editor's Choice, and Top Charts are developer product placements (paid promotion in Developer Center), not display ad slots. See Promote your app for those packages.
